113105506 has 4 divisors (see below), whose sum is σ = 169658262. Its totient is φ = 56552752.

The previous prime is 113105501. The next prime is 113105519. The reversal of 113105506 is 605501311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61481281 + 51624225 = 7841^2 + 7185^2 .

It is not an unprimeable number, because it can be changed into a prime (113105501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28276375 + ... + 28276378.

Almost surely, 2^113105506 is an apocalyptic number.

113105506 is a deficient number, since it is larger than the sum of its proper divisors (56552756).

113105506 is an equidigital number, since it uses as much as digits as its factorization.

113105506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56552755.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 113105506 is about 10635.1072397038. The cubic root of 113105506 is about 483.6092314094.

Adding to 113105506 its reverse (605501311), we get a palindrome (718606817).

The spelling of 113105506 in words is "one hundred thirteen million, one hundred five thousand, five hundred six".