2138337155 has 16 divisors (see below), whose sum is σ = 2596104000. Its totient is φ = 1690665600.

The previous prime is 2138337151. The next prime is 2138337167. The reversal of 2138337155 is 5517338312.

It is not a de Polignac number, because 2138337155 - 2² = 2138337151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2138337151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298961 + ... + 306029.

It is an arithmetic number, because the mean of its divisors is an integer number (162256500).

Almost surely, 2^2138337155 is an apocalyptic number.

2138337155 is a deficient number, since it is larger than the sum of its proper divisors (457766845).

2138337155 is a wasteful number, since it uses less digits than its factorization.

2138337155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7774.

The product of its digits is 75600, while the sum is 38.

The square root of 2138337155 is about 46242.1577675610. The cubic root of 2138337155 is about 1288.3248803920.

The spelling of 2138337155 in words is "two billion, one hundred thirty-eight million, three hundred thirty-seven thousand, one hundred fifty-five".