115651651 has 4 divisors (see below), whose sum is σ = 121738600. Its totient is φ = 109564704.

The previous prime is 115651643. The next prime is 115651667. The reversal of 115651651 is 156156511.

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

It is a cyclic number.

It is not a de Polignac number, because 115651651 - 2³ = 115651643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115651351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3043446 + ... + 3043483.

It is an arithmetic number, because the mean of its divisors is an integer number (30434650).

Almost surely, 2^115651651 is an apocalyptic number.

115651651 is a deficient number, since it is larger than the sum of its proper divisors (6086949).

115651651 is an equidigital number, since it uses as much as digits as its factorization.

115651651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6086948.

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

The square root of 115651651 is about 10754.1457587295. The cubic root of 115651651 is about 487.2112176144.

The spelling of 115651651 in words is "one hundred fifteen million, six hundred fifty-one thousand, six hundred fifty-one".