113521633 has 2 divisors, whose sum is σ = 113521634. Its totient is φ = 113521632.

The previous prime is 113521627. The next prime is 113521693. The reversal of 113521633 is 336125311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71115489 + 42406144 = 8433^2 + 6512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113521633 is a prime.

It is a super-2 number, since 2×113521633² = 25774322317973378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113521598 and 113521607.

It is not a weakly prime, because it can be changed into another prime (113521693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56760816 + 56760817.

It is an arithmetic number, because the mean of its divisors is an integer number (56760817).

Almost surely, 2^113521633 is an apocalyptic number.

It is an amenable number.

113521633 is a deficient number, since it is larger than the sum of its proper divisors (1).

113521633 is an equidigital number, since it uses as much as digits as its factorization.

113521633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 25.

The square root of 113521633 is about 10654.6531149540. The cubic root of 113521633 is about 484.2015885548.

Adding to 113521633 its reverse (336125311), we get a palindrome (449646944).

The spelling of 113521633 in words is "one hundred thirteen million, five hundred twenty-one thousand, six hundred thirty-three".