2113138 has 4 divisors (see below), whose sum is σ = 3169710. Its totient is φ = 1056568.

The previous prime is 2113129. The next prime is 2113147. The reversal of 2113138 is 8313112.

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

It is an interprime number because it is at equal distance from previous prime (2113129) and next prime (2113147).

It can be written as a sum of positive squares in only one way, i.e., 2024929 + 88209 = 1423^2 + 297^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528283 + ... + 528286.

2^2113138 is an apocalyptic number.

2113138 is a deficient number, since it is larger than the sum of its proper divisors (1056572).

2113138 is a wasteful number, since it uses less digits than its factorization.

2113138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056571.

The product of its digits is 144, while the sum is 19.

The square root of 2113138 is about 1453.6636474783. The cubic root of 2113138 is about 128.3244130904.

The spelling of 2113138 in words is "two million, one hundred thirteen thousand, one hundred thirty-eight".