2115455107 has 4 divisors (see below), whose sum is σ = 2207431440. Its totient is φ = 2023478776.

The previous prime is 2115455099. The next prime is 2115455137. The reversal of 2115455107 is 7015545112.

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 2115455107 - 2³ = 2115455099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2115455137) 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, 45988132 + ... + 45988177.

It is an arithmetic number, because the mean of its divisors is an integer number (551857860).

Almost surely, 2^2115455107 is an apocalyptic number.

2115455107 is a deficient number, since it is larger than the sum of its proper divisors (91976333).

2115455107 is an equidigital number, since it uses as much as digits as its factorization.

2115455107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91976332.

The product of its (nonzero) digits is 7000, while the sum is 31.

The square root of 2115455107 is about 45994.0768686578. The cubic root of 2115455107 is about 1283.7129956621.

The spelling of 2115455107 in words is "two billion, one hundred fifteen million, four hundred fifty-five thousand, one hundred seven".