2115344155 has 8 divisors (see below), whose sum is σ = 2648778912. Its totient is φ = 1618698048.

The previous prime is 2115344149. The next prime is 2115344159. The reversal of 2115344155 is 5514435112.

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

It is not a de Polignac number, because 2115344155 - 2⁵ = 2115344123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115344159) 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, 9197034 + ... + 9197263.

It is an arithmetic number, because the mean of its divisors is an integer number (331097364).

Almost surely, 2^2115344155 is an apocalyptic number.

2115344155 is a deficient number, since it is larger than the sum of its proper divisors (533434757).

2115344155 is a wasteful number, since it uses less digits than its factorization.

2115344155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18394325.

The product of its digits is 12000, while the sum is 31.

The square root of 2115344155 is about 45992.8706975331. The cubic root of 2115344155 is about 1283.6905524198.

Adding to 2115344155 its reverse (5514435112), we get a palindrome (7629779267).

The spelling of 2115344155 in words is "two billion, one hundred fifteen million, three hundred forty-four thousand, one hundred fifty-five".