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1025652137 = 2129481753
BaseRepresentation
bin111101001000100…
…011010110101001
32122110221112020012
4331020203112221
54100031332022
6245435141305
734262620316
oct7510432651
92573845205
101025652137
11486a546a4
122475a4835
1313464c173
149a307d0d
156009bde2
hex3d2235a9

1025652137 has 4 divisors (see below), whose sum is σ = 1026136020. Its totient is φ = 1025168256.

The previous prime is 1025652119. The next prime is 1025652139. The reversal of 1025652137 is 7312565201.

1025652137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 495685696 + 529966441 = 22264^2 + 23021^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025652137 - 26 = 1025652073 is a prime.

It is a super-2 number, since 2×10256521372 = 2103924612265333538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025652139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238748 + ... + 243005.

It is an arithmetic number, because the mean of its divisors is an integer number (256534005).

Almost surely, 21025652137 is an apocalyptic number.

It is an amenable number.

1025652137 is a deficient number, since it is larger than the sum of its proper divisors (483883).

1025652137 is an equidigital number, since it uses as much as digits as its factorization.

1025652137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483882.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1025652137 is about 32025.8042365840. The cubic root of 1025652137 is about 1008.4786221324.

The spelling of 1025652137 in words is "one billion, twenty-five million, six hundred fifty-two thousand, one hundred thirty-seven".

Divisors: 1 2129 481753 1025652137