125276539 has 2 divisors, whose sum is σ = 125276540. Its totient is φ = 125276538.

The previous prime is 125276537. The next prime is 125276609. The reversal of 125276539 is 935672521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125276539 - 2¹ = 125276537 is a prime.

It is a super-2 number, since 2×125276539² = 31388422447637042, which contains 22 as substring.

Together with 125276537, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (125276537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62638269 + 62638270.

It is an arithmetic number, because the mean of its divisors is an integer number (62638270).

Almost surely, 2^125276539 is an apocalyptic number.

125276539 is a deficient number, since it is larger than the sum of its proper divisors (1).

125276539 is an equidigital number, since it uses as much as digits as its factorization.

125276539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 125276539 is about 11192.7002550770. The cubic root of 125276539 is about 500.3684470935.

The spelling of 125276539 in words is "one hundred twenty-five million, two hundred seventy-six thousand, five hundred thirty-nine".