125031641 has 16 divisors (see below), whose sum is σ = 145367040. Its totient is φ = 105328080.

The previous prime is 125031631. The next prime is 125031667. The reversal of 125031641 is 146130521.

It is a cyclic number.

It is not a de Polignac number, because 125031641 - 2¹⁴ = 125015257 is a prime.

It is a super-2 number, since 2×125031641² = 31265822502305762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125031601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171620 + ... + 172346.

It is an arithmetic number, because the mean of its divisors is an integer number (9085440).

Almost surely, 2^125031641 is an apocalyptic number.

It is an amenable number.

125031641 is a deficient number, since it is larger than the sum of its proper divisors (20335399).

125031641 is an equidigital number, since it uses as much as digits as its factorization.

125031641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 125031641 is about 11181.7548265020. The cubic root of 125031641 is about 500.0421844408.

The spelling of 125031641 in words is "one hundred twenty-five million, thirty-one thousand, six hundred forty-one".