2113508 has 12 divisors (see below), whose sum is σ = 3916332. Its totient is φ = 994560.

The previous prime is 2113471. The next prime is 2113511. The reversal of 2113508 is 8053112.

2113508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1149184 + 964324 = 1072^2 + 982^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2113508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15473 + ... + 15608.

It is an arithmetic number, because the mean of its divisors is an integer number (326361).

2^2113508 is an apocalyptic number.

It is an amenable number.

2113508 is a deficient number, since it is larger than the sum of its proper divisors (1802824).

2113508 is a wasteful number, since it uses less digits than its factorization.

2113508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31102 (or 31100 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2113508 is about 1453.7909065612. The cubic root of 2113508 is about 128.3319023097.

The spelling of 2113508 in words is "two million, one hundred thirteen thousand, five hundred eight".