113641566 has 32 divisors (see below), whose sum is σ = 241118208. Its totient is φ = 35583360.

The previous prime is 113641559. The next prime is 113641589. The reversal of 113641566 is 665146311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87381 + ... + 88671.

It is an arithmetic number, because the mean of its divisors is an integer number (7534944).

Almost surely, 2^113641566 is an apocalyptic number.

113641566 is an abundant number, since it is smaller than the sum of its proper divisors (127476642).

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

113641566 is a wasteful number, since it uses less digits than its factorization.

113641566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176.

The product of its digits is 12960, while the sum is 33.

The square root of 113641566 is about 10660.2798274717. The cubic root of 113641566 is about 484.3720444967.

Adding to 113641566 its reverse (665146311), we get a palindrome (778787877).

The spelling of 113641566 in words is "one hundred thirteen million, six hundred forty-one thousand, five hundred sixty-six".