115516451 has 4 divisors (see below), whose sum is σ = 116596152. Its totient is φ = 114436752.

The previous prime is 115516433. The next prime is 115516463. The reversal of 115516451 is 154615511.

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-115516451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115516421) 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, 539690 + ... + 539903.

It is an arithmetic number, because the mean of its divisors is an integer number (29149038).

Almost surely, 2^115516451 is an apocalyptic number.

115516451 is a deficient number, since it is larger than the sum of its proper divisors (1079701).

115516451 is a wasteful number, since it uses less digits than its factorization.

115516451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079700.

The product of its digits is 3000, while the sum is 29.

The square root of 115516451 is about 10747.8579726381. The cubic root of 115516451 is about 487.0212890918.

The spelling of 115516451 in words is "one hundred fifteen million, five hundred sixteen thousand, four hundred fifty-one".