125527139 has 2 divisors, whose sum is σ = 125527140. Its totient is φ = 125527138.

The previous prime is 125527121. The next prime is 125527189. The reversal of 125527139 is 931725521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125527139 - 2⁸ = 125526883 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 125527099 and 125527108.

It is not a weakly prime, because it can be changed into another prime (125527189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62763569 + 62763570.

It is an arithmetic number, because the mean of its divisors is an integer number (62763570).

Almost surely, 2^125527139 is an apocalyptic number.

125527139 is a deficient number, since it is larger than the sum of its proper divisors (1).

125527139 is an equidigital number, since it uses as much as digits as its factorization.

125527139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 35.

The square root of 125527139 is about 11203.8894585764. The cubic root of 125527139 is about 500.7018663064.

It can be divided in two parts, 12552 and 7139, that added together give a palindrome (19691).

The spelling of 125527139 in words is "one hundred twenty-five million, five hundred twenty-seven thousand, one hundred thirty-nine".