115900439 has 2 divisors, whose sum is σ = 115900440. Its totient is φ = 115900438.

The previous prime is 115900409. The next prime is 115900451. The reversal of 115900439 is 934009511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115900439 - 2¹² = 115896343 is a prime.

It is a super-3 number, since 3×115900439³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115900409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57950219 + 57950220.

It is an arithmetic number, because the mean of its divisors is an integer number (57950220).

Almost surely, 2^115900439 is an apocalyptic number.

115900439 is a deficient number, since it is larger than the sum of its proper divisors (1).

115900439 is an equidigital number, since it uses as much as digits as its factorization.

115900439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 115900439 is about 10765.7066187037. The cubic root of 115900439 is about 487.5603277522.

The spelling of 115900439 in words is "one hundred fifteen million, nine hundred thousand, four hundred thirty-nine".