125651597 has 2 divisors, whose sum is σ = 125651598. Its totient is φ = 125651596.

The previous prime is 125651567. The next prime is 125651609. The reversal of 125651597 is 795156521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80748196 + 44903401 = 8986^2 + 6701^2 .

It is a cyclic number.

It is not a de Polignac number, because 125651597 - 2²⁰ = 124603021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125651527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62825798 + 62825799.

It is an arithmetic number, because the mean of its divisors is an integer number (62825799).

Almost surely, 2^125651597 is an apocalyptic number.

It is an amenable number.

125651597 is a deficient number, since it is larger than the sum of its proper divisors (1).

125651597 is an equidigital number, since it uses as much as digits as its factorization.

125651597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 41.

The square root of 125651597 is about 11209.4423144062. The cubic root of 125651597 is about 500.8672907437.

The spelling of 125651597 in words is "one hundred twenty-five million, six hundred fifty-one thousand, five hundred ninety-seven".