125537459 has 2 divisors, whose sum is σ = 125537460. Its totient is φ = 125537458.

The previous prime is 125537453. The next prime is 125537513. The reversal of 125537459 is 954735521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125537459 - 2²⁴ = 108760243 is a prime.

It is a super-2 number, since 2×125537459² = 31519307224353362, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p_7138976 and since 125537459 and 7138976 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (125537453) 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 as a sum of consecutive naturals, namely, 62768729 + 62768730.

It is an arithmetic number, because the mean of its divisors is an integer number (62768730).

Almost surely, 2^125537459 is an apocalyptic number.

125537459 is a deficient number, since it is larger than the sum of its proper divisors (1).

125537459 is an equidigital number, since it uses as much as digits as its factorization.

125537459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 41.

The square root of 125537459 is about 11204.3500034585. The cubic root of 125537459 is about 500.7155873808.

The spelling of 125537459 in words is "one hundred twenty-five million, five hundred thirty-seven thousand, four hundred fifty-nine".