113133633 has 4 divisors (see below), whose sum is σ = 150844848. Its totient is φ = 75422420.

The previous prime is 113133613. The next prime is 113133661. The reversal of 113133633 is 336331311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 336331311 = 3 ⋅112110437.

It is a cyclic number.

It is not a de Polignac number, because 113133633 - 2⁹ = 113133121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113133613) 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, 18855603 + ... + 18855608.

It is an arithmetic number, because the mean of its divisors is an integer number (37711212).

Almost surely, 2^113133633 is an apocalyptic number.

It is an amenable number.

113133633 is a deficient number, since it is larger than the sum of its proper divisors (37711215).

113133633 is an equidigital number, since it uses as much as digits as its factorization.

113133633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37711214.

The product of its digits is 1458, while the sum is 24.

The square root of 113133633 is about 10636.4295231060. The cubic root of 113133633 is about 483.6493159580.

Adding to 113133633 its reverse (336331311), we get a palindrome (449464944).

The spelling of 113133633 in words is "one hundred thirteen million, one hundred thirty-three thousand, six hundred thirty-three".