2155132113 has 4 divisors (see below), whose sum is σ = 2873509488. Its totient is φ = 1436754740.

The previous prime is 2155132097. The next prime is 2155132151. The reversal of 2155132113 is 3112315512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2155132113 - 2⁴ = 2155132097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2155130113) 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, 359188683 + ... + 359188688.

It is an arithmetic number, because the mean of its divisors is an integer number (718377372).

Almost surely, 2^2155132113 is an apocalyptic number.

It is an amenable number.

2155132113 is a deficient number, since it is larger than the sum of its proper divisors (718377375).

2155132113 is an equidigital number, since it uses as much as digits as its factorization.

2155132113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718377374.

The product of its digits is 900, while the sum is 24.

The square root of 2155132113 is about 46423.4004894084. The cubic root of 2155132113 is about 1291.6890146745.

Adding to 2155132113 its reverse (3112315512), we get a palindrome (5267447625).

The spelling of 2155132113 in words is "two billion, one hundred fifty-five million, one hundred thirty-two thousand, one hundred thirteen".