115313551 has 2 divisors, whose sum is σ = 115313552. Its totient is φ = 115313550.

The previous prime is 115313537. The next prime is 115313557. The reversal of 115313551 is 155313511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115313551 - 2⁹ = 115313039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115313557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57656775 + 57656776.

It is an arithmetic number, because the mean of its divisors is an integer number (57656776).

Almost surely, 2^115313551 is an apocalyptic number.

115313551 is a deficient number, since it is larger than the sum of its proper divisors (1).

115313551 is an equidigital number, since it uses as much as digits as its factorization.

115313551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1125, while the sum is 25.

The square root of 115313551 is about 10738.4147340285. The cubic root of 115313551 is about 486.7359775452.

The spelling of 115313551 in words is "one hundred fifteen million, three hundred thirteen thousand, five hundred fifty-one".