113413636 has 42 divisors (see below), whose sum is σ = 232513358. Its totient is φ = 48404160.

The previous prime is 113413633. The next prime is 113413637. The reversal of 113413636 is 636314311.

It can be written as a sum of positive squares in only one way, i.e., 105884100 + 7529536 = 10290^2 + 2744^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (113413631) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 470476 + ... + 470716.

Almost surely, 2^113413636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113413636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116256679).

113413636 is an abundant number, since it is smaller than the sum of its proper divisors (119099722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113413636 is an frugal number, since it uses more digits than its factorization.

113413636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 250 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 113413636 is about 10649.5838416344. The cubic root of 113413636 is about 484.0479940113.

Adding to 113413636 its reverse (636314311), we get a palindrome (749727947).

The spelling of 113413636 in words is "one hundred thirteen million, four hundred thirteen thousand, six hundred thirty-six".