115542719 has 2 divisors, whose sum is σ = 115542720. Its totient is φ = 115542718.

The previous prime is 115542701. The next prime is 115542733. The reversal of 115542719 is 917245511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115542719 is a prime.

It is a super-2 number, since 2×115542719² = 26700239827825922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115542769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57771359 + 57771360.

It is an arithmetic number, because the mean of its divisors is an integer number (57771360).

Almost surely, 2^115542719 is an apocalyptic number.

115542719 is a deficient number, since it is larger than the sum of its proper divisors (1).

115542719 is an equidigital number, since it uses as much as digits as its factorization.

115542719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 35.

The square root of 115542719 is about 10749.0799141136. The cubic root of 115542719 is about 487.0582018880.

The spelling of 115542719 in words is "one hundred fifteen million, five hundred forty-two thousand, seven hundred nineteen".