113642633 has 4 divisors (see below), whose sum is σ = 122384388. Its totient is φ = 104900880.

The previous prime is 113642623. The next prime is 113642689. The reversal of 113642633 is 336246311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 336246311 = 11027 ⋅30493.

It can be written as a sum of positive squares in 2 ways, for example, as 74166544 + 39476089 = 8612^2 + 6283^2 .

It is a cyclic number.

It is not a de Polignac number, because 113642633 - 2⁸ = 113642377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113642596 and 113642605.

It is not an unprimeable number, because it can be changed into a prime (113642623) by changing a digit.

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, 4370858 + ... + 4370883.

It is an arithmetic number, because the mean of its divisors is an integer number (30596097).

Almost surely, 2^113642633 is an apocalyptic number.

113642633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113642633 is a deficient number, since it is larger than the sum of its proper divisors (8741755).

113642633 is an equidigital number, since it uses as much as digits as its factorization.

113642633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8741754.

The product of its digits is 7776, while the sum is 29.

The square root of 113642633 is about 10660.3298729448. The cubic root of 113642633 is about 484.3735604425.

Adding to 113642633 its reverse (336246311), we get a palindrome (449888944).

The spelling of 113642633 in words is "one hundred thirteen million, six hundred forty-two thousand, six hundred thirty-three".