125126537 has 2 divisors, whose sum is σ = 125126538. Its totient is φ = 125126536.

The previous prime is 125126531. The next prime is 125126539. The reversal of 125126537 is 735621521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111429136 + 13697401 = 10556^2 + 3701^2 .

It is a cyclic number.

It is not a de Polignac number, because 125126537 - 2⁶ = 125126473 is a prime.

It is a super-2 number, since 2×125126537² = 31313300523224738, which contains 22 as substring.

Together with 125126539, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125126531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62563268 + 62563269.

It is an arithmetic number, because the mean of its divisors is an integer number (62563269).

Almost surely, 2^125126537 is an apocalyptic number.

It is an amenable number.

125126537 is a deficient number, since it is larger than the sum of its proper divisors (1).

125126537 is an equidigital number, since it uses as much as digits as its factorization.

125126537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 32.

The square root of 125126537 is about 11185.9973627746. The cubic root of 125126537 is about 500.1686591018.

The spelling of 125126537 in words is "one hundred twenty-five million, one hundred twenty-six thousand, five hundred thirty-seven".