125038769 has 2 divisors, whose sum is σ = 125038770. Its totient is φ = 125038768.

The previous prime is 125038763. The next prime is 125038777. The reversal of 125038769 is 967830521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63808144 + 61230625 = 7988^2 + 7825^2 .

It is a cyclic number.

It is not a de Polignac number, because 125038769 - 2¹² = 125034673 is a prime.

It is a super-2 number, since 2×125038769² = 31269387506070722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (125038763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62519384 + 62519385.

It is an arithmetic number, because the mean of its divisors is an integer number (62519385).

Almost surely, 2^125038769 is an apocalyptic number.

It is an amenable number.

125038769 is a deficient number, since it is larger than the sum of its proper divisors (1).

125038769 is an equidigital number, since it uses as much as digits as its factorization.

125038769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 125038769 is about 11182.0735554726. The cubic root of 125038769 is about 500.0516866568.

The spelling of 125038769 in words is "one hundred twenty-five million, thirty-eight thousand, seven hundred sixty-nine".