115745551 has 12 divisors (see below), whose sum is σ = 120621960. Its totient is φ = 111032880.

The previous prime is 115745543. The next prime is 115745603. The reversal of 115745551 is 155547511.

It is not a de Polignac number, because 115745551 - 2³ = 115745543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115745521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108561 + ... + 109621.

It is an arithmetic number, because the mean of its divisors is an integer number (10051830).

Almost surely, 2^115745551 is an apocalyptic number.

115745551 is a deficient number, since it is larger than the sum of its proper divisors (4876409).

115745551 is an equidigital number, since it uses as much as digits as its factorization.

115745551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1163 counting only the distinct ones).

The product of its digits is 17500, while the sum is 34.

The square root of 115745551 is about 10758.5106311236. The cubic root of 115745551 is about 487.3430409446.

The spelling of 115745551 in words is "one hundred fifteen million, seven hundred forty-five thousand, five hundred fifty-one".