125690329 has 2 divisors, whose sum is σ = 125690330. Its totient is φ = 125690328.

The previous prime is 125690293. The next prime is 125690347. The reversal of 125690329 is 923096521.

Together with previous prime (125690293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78287104 + 47403225 = 8848^2 + 6885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125690329 is a prime.

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 (125690029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62845164 + 62845165.

It is an arithmetic number, because the mean of its divisors is an integer number (62845165).

Almost surely, 2^125690329 is an apocalyptic number.

It is an amenable number.

125690329 is a deficient number, since it is larger than the sum of its proper divisors (1).

125690329 is an equidigital number, since it uses as much as digits as its factorization.

125690329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 125690329 is about 11211.1698319132. The cubic root of 125690329 is about 500.9187494316.

The spelling of 125690329 in words is "one hundred twenty-five million, six hundred ninety thousand, three hundred twenty-nine".