125337731 has 2 divisors, whose sum is σ = 125337732. Its totient is φ = 125337730.

The previous prime is 125337727. The next prime is 125337761. The reversal of 125337731 is 137733521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125337731 - 2² = 125337727 is a prime.

It is a super-2 number, since 2×125337731² = 31419093624456722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125337761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62668865 + 62668866.

It is an arithmetic number, because the mean of its divisors is an integer number (62668866).

Almost surely, 2^125337731 is an apocalyptic number.

125337731 is a deficient number, since it is larger than the sum of its proper divisors (1).

125337731 is an equidigital number, since it uses as much as digits as its factorization.

125337731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13230, while the sum is 32.

The square root of 125337731 is about 11195.4334887042. The cubic root of 125337731 is about 500.4499030531.

The spelling of 125337731 in words is "one hundred twenty-five million, three hundred thirty-seven thousand, seven hundred thirty-one".