125162531 has 8 divisors (see below), whose sum is σ = 139138944. Its totient is φ = 111807360.

The previous prime is 125162497. The next prime is 125162537. The reversal of 125162531 is 135261521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125162531 - 2⁶ = 125162467 is a prime.

It is a super-2 number, since 2×125162531² = 31331318332651922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125162531.

It is not an unprimeable number, because it can be changed into a prime (125162537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154886 + ... + 155691.

It is an arithmetic number, because the mean of its divisors is an integer number (17392368).

Almost surely, 2^125162531 is an apocalyptic number.

125162531 is a deficient number, since it is larger than the sum of its proper divisors (13976413).

125162531 is a wasteful number, since it uses less digits than its factorization.

125162531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310621.

The product of its digits is 1800, while the sum is 26.

The square root of 125162531 is about 11187.6061335748. The cubic root of 125162531 is about 500.2166141431.

The spelling of 125162531 in words is "one hundred twenty-five million, one hundred sixty-two thousand, five hundred thirty-one".