2113253445 has 16 divisors (see below), whose sum is σ = 3438515520. Its totient is φ = 1107965184.

The previous prime is 2113253437. The next prime is 2113253491. The reversal of 2113253445 is 5443523112.

It is not a de Polignac number, because 2113253445 - 2³ = 2113253437 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1193044 + ... + 1194813.

It is an arithmetic number, because the mean of its divisors is an integer number (214907220).

Almost surely, 2^2113253445 is an apocalyptic number.

It is an amenable number.

2113253445 is a deficient number, since it is larger than the sum of its proper divisors (1325262075).

2113253445 is a wasteful number, since it uses less digits than its factorization.

2113253445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387924.

The product of its digits is 14400, while the sum is 30.

The square root of 2113253445 is about 45970.1364474808. The cubic root of 2113253445 is about 1283.2674992183.

Adding to 2113253445 its reverse (5443523112), we get a palindrome (7556776557).

The spelling of 2113253445 in words is "two billion, one hundred thirteen million, two hundred fifty-three thousand, four hundred forty-five".