1125658247 has 16 divisors (see below), whose sum is σ = 1365698880. Its totient is φ = 905722368.

The previous prime is 1125658217. The next prime is 1125658273. The reversal of 1125658247 is 7428565211.

It is a cyclic number.

It is not a de Polignac number, because 1125658247 - 2²⁰ = 1124609671 is a prime.

It is a super-2 number, since 2×1125658247² = 2534212978078226018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125658217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34133 + ... + 58449.

It is an arithmetic number, because the mean of its divisors is an integer number (85356180).

Almost surely, 2^1125658247 is an apocalyptic number.

1125658247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1125658247 is a deficient number, since it is larger than the sum of its proper divisors (240040633).

1125658247 is a wasteful number, since it uses less digits than its factorization.

1125658247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24730.

The product of its digits is 134400, while the sum is 41.

The square root of 1125658247 is about 33550.8307944826. The cubic root of 1125658247 is about 1040.2447177449.

The spelling of 1125658247 in words is "one billion, one hundred twenty-five million, six hundred fifty-eight thousand, two hundred forty-seven".