3138672155 has 4 divisors (see below), whose sum is σ = 3766406592. Its totient is φ = 2510937720.

The previous prime is 3138672127. The next prime is 3138672167. The reversal of 3138672155 is 5512768313.

3138672155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3138672155 - 2¹⁶ = 3138606619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313867211 + ... + 313867220.

It is an arithmetic number, because the mean of its divisors is an integer number (941601648).

Almost surely, 2^3138672155 is an apocalyptic number.

3138672155 is a deficient number, since it is larger than the sum of its proper divisors (627734437).

3138672155 is an equidigital number, since it uses as much as digits as its factorization.

3138672155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627734436.

The product of its digits is 151200, while the sum is 41.

The square root of 3138672155 is about 56023.8534465454. The cubic root of 3138672155 is about 1464.1379071406.

The spelling of 3138672155 in words is "three billion, one hundred thirty-eight million, six hundred seventy-two thousand, one hundred fifty-five".