115049551 has 4 divisors (see below), whose sum is σ = 115072632. Its totient is φ = 115026472.

The previous prime is 115049521. The next prime is 115049569. The reversal of 115049551 is 155940511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115049551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115049521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616 + ... + 15181.

It is an arithmetic number, because the mean of its divisors is an integer number (28768158).

Almost surely, 2^115049551 is an apocalyptic number.

115049551 is a deficient number, since it is larger than the sum of its proper divisors (23081).

115049551 is an equidigital number, since it uses as much as digits as its factorization.

115049551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23080.

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 115049551 is about 10726.1153732374. The cubic root of 115049551 is about 486.3642476440.

It can be divided in two parts, 115049 and 551, that added together give a square (115600 = 340²).

The spelling of 115049551 in words is "one hundred fifteen million, forty-nine thousand, five hundred fifty-one".