2113149953 has 4 divisors (see below), whose sum is σ = 2124955440. Its totient is φ = 2101344468.

The previous prime is 2113149949. The next prime is 2113149971. The reversal of 2113149953 is 3599413112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2113149953 - 2² = 2113149949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2113149943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5902475 + ... + 5902832.

It is an arithmetic number, because the mean of its divisors is an integer number (531238860).

Almost surely, 2^2113149953 is an apocalyptic number.

It is an amenable number.

2113149953 is a deficient number, since it is larger than the sum of its proper divisors (11805487).

2113149953 is a wasteful number, since it uses less digits than its factorization.

2113149953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11805486.

The product of its digits is 29160, while the sum is 38.

The square root of 2113149953 is about 45969.0107898789. The cubic root of 2113149953 is about 1283.2465504630.

The spelling of 2113149953 in words is "two billion, one hundred thirteen million, one hundred forty-nine thousand, nine hundred fifty-three".