2113537393 has 16 divisors (see below), whose sum is σ = 2442908160. Its totient is φ = 1807187200.

The previous prime is 2113537351. The next prime is 2113537397. The reversal of 2113537393 is 3937353112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113537393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2113537397) 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, 397728 + ... + 403006.

It is an arithmetic number, because the mean of its divisors is an integer number (152681760).

Almost surely, 2^2113537393 is an apocalyptic number.

It is an amenable number.

2113537393 is a deficient number, since it is larger than the sum of its proper divisors (329370767).

2113537393 is a wasteful number, since it uses less digits than its factorization.

2113537393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448.

The product of its digits is 51030, while the sum is 37.

The square root of 2113537393 is about 45973.2247400593. The cubic root of 2113537393 is about 1283.3249721987.

The spelling of 2113537393 in words is "two billion, one hundred thirteen million, five hundred thirty-seven thousand, three hundred ninety-three".