125660531 has 8 divisors (see below), whose sum is σ = 129744384. Its totient is φ = 121625280.

The previous prime is 125660527. The next prime is 125660543. The reversal of 125660531 is 135066521.

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 125660531 - 2² = 125660527 is a prime.

It is a super-2 number, since 2×125660531² = 31581138102403922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125660494 and 125660503.

It is not an unprimeable number, because it can be changed into a prime (125660581) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6860 + ... + 17273.

It is an arithmetic number, because the mean of its divisors is an integer number (16218048).

Almost surely, 2^125660531 is an apocalyptic number.

125660531 is a deficient number, since it is larger than the sum of its proper divisors (4083853).

125660531 is a wasteful number, since it uses less digits than its factorization.

125660531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24301.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 125660531 is about 11209.8408106449. The cubic root of 125660531 is about 500.8791612450.

The spelling of 125660531 in words is "one hundred twenty-five million, six hundred sixty thousand, five hundred thirty-one".