115239529 has 2 divisors, whose sum is σ = 115239530. Its totient is φ = 115239528.

The previous prime is 115239491. The next prime is 115239563. The reversal of 115239529 is 925932511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66797929 + 48441600 = 8173^2 + 6960^2 .

It is a cyclic number.

It is not a de Polignac number, because 115239529 - 2¹¹ = 115237481 is a prime.

It is not a weakly prime, because it can be changed into another prime (115239569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57619764 + 57619765.

It is an arithmetic number, because the mean of its divisors is an integer number (57619765).

Almost surely, 2^115239529 is an apocalyptic number.

It is an amenable number.

115239529 is a deficient number, since it is larger than the sum of its proper divisors (1).

115239529 is an equidigital number, since it uses as much as digits as its factorization.

115239529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300, while the sum is 37.

The square root of 115239529 is about 10734.9675826246. The cubic root of 115239529 is about 486.6318068377.

The spelling of 115239529 in words is "one hundred fifteen million, two hundred thirty-nine thousand, five hundred twenty-nine".