113217640 has 32 divisors (see below), whose sum is σ = 255214080. Its totient is φ = 45202752.

The previous prime is 113217623. The next prime is 113217659. The reversal of 113217640 is 46712311.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21949 + ... + 26611.

It is an arithmetic number, because the mean of its divisors is an integer number (7975440).

Almost surely, 2^113217640 is an apocalyptic number.

113217640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113217640 is an abundant number, since it is smaller than the sum of its proper divisors (141996440).

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

113217640 is a wasteful number, since it uses less digits than its factorization.

113217640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5281 (or 5277 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 113217640 is about 10640.3778128410. The cubic root of 113217640 is about 483.7689970662.

Adding to 113217640 its reverse (46712311), we get a palindrome (159929951).

The spelling of 113217640 in words is "one hundred thirteen million, two hundred seventeen thousand, six hundred forty".