2113544155 has 16 divisors (see below), whose sum is σ = 2631676320. Its totient is φ = 1628163072.

The previous prime is 2113544149. The next prime is 2113544161. The reversal of 2113544155 is 5514453112.

It is an interprime number because it is at equal distance from previous prime (2113544149) and next prime (2113544161).

It is a cyclic number.

It is not a de Polignac number, because 2113544155 - 2²¹ = 2111447003 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40945 + ... + 76834.

It is an arithmetic number, because the mean of its divisors is an integer number (164479770).

Almost surely, 2^2113544155 is an apocalyptic number.

2113544155 is a deficient number, since it is larger than the sum of its proper divisors (518132165).

2113544155 is a wasteful number, since it uses less digits than its factorization.

2113544155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117918.

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

The square root of 2113544155 is about 45973.2982828076. The cubic root of 2113544155 is about 1283.3263408101.

Adding to 2113544155 its reverse (5514453112), we get a palindrome (7627997267).

The spelling of 2113544155 in words is "two billion, one hundred thirteen million, five hundred forty-four thousand, one hundred fifty-five".