125539259 has 2 divisors, whose sum is σ = 125539260. Its totient is φ = 125539258.

The previous prime is 125539229. The next prime is 125539273. The reversal of 125539259 is 952935521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125539259 - 2²⁰ = 124490683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125539229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62769629 + 62769630.

It is an arithmetic number, because the mean of its divisors is an integer number (62769630).

Almost surely, 2^125539259 is an apocalyptic number.

125539259 is a deficient number, since it is larger than the sum of its proper divisors (1).

125539259 is an equidigital number, since it uses as much as digits as its factorization.

125539259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121500, while the sum is 41.

The square root of 125539259 is about 11204.4303291154. The cubic root of 125539259 is about 500.7179805145.

It can be divided in two parts, 12553 and 9259, that added together give a palindrome (21812).

The spelling of 125539259 in words is "one hundred twenty-five million, five hundred thirty-nine thousand, two hundred fifty-nine".