1025201145 has 16 divisors (see below), whose sum is σ = 1726655040. Its totient is φ = 517996224.

The previous prime is 1025201137. The next prime is 1025201189. The reversal of 1025201145 is 5411025201.

It is not a de Polignac number, because 1025201145 - 2³ = 1025201137 is a prime.

It is a super-2 number, since 2×1025201145² = 2102074775418622050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1798314 + ... + 1798883.

It is an arithmetic number, because the mean of its divisors is an integer number (107915940).

Almost surely, 2^1025201145 is an apocalyptic number.

1025201145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1025201145 is a deficient number, since it is larger than the sum of its proper divisors (701453895).

1025201145 is a wasteful number, since it uses less digits than its factorization.

1025201145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597224.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1025201145 is about 32018.7623901987. The cubic root of 1025201145 is about 1008.3307869313.

Adding to 1025201145 its reverse (5411025201), we get a palindrome (6436226346).

The spelling of 1025201145 in words is "one billion, twenty-five million, two hundred one thousand, one hundred forty-five".