115251551 has 8 divisors (see below), whose sum is σ = 127337184. Its totient is φ = 103755520.

The previous prime is 115251527. The next prime is 115251553. The reversal of 115251551 is 155152511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115251551 - 2²⁶ = 48142687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115251551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115251553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146990 + ... + 147771.

It is an arithmetic number, because the mean of its divisors is an integer number (15917148).

Almost surely, 2^115251551 is an apocalyptic number.

115251551 is a deficient number, since it is larger than the sum of its proper divisors (12085633).

115251551 is a wasteful number, since it uses less digits than its factorization.

115251551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294801.

The product of its digits is 1250, while the sum is 26.

The square root of 115251551 is about 10735.5275138206. The cubic root of 115251551 is about 486.6487283582.

The spelling of 115251551 in words is "one hundred fifteen million, two hundred fifty-one thousand, five hundred fifty-one".