113566481 has 4 divisors (see below), whose sum is σ = 129790272. Its totient is φ = 97342692.

The previous prime is 113566463. The next prime is 113566487. The reversal of 113566481 is 184665311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184665311 = 4507 ⋅40973.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113566481 is a prime.

It is a super-2 number, since 2×113566481² = 25794691213446722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113566487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8111885 + ... + 8111898.

It is an arithmetic number, because the mean of its divisors is an integer number (32447568).

Almost surely, 2^113566481 is an apocalyptic number.

It is an amenable number.

113566481 is a deficient number, since it is larger than the sum of its proper divisors (16223791).

113566481 is an equidigital number, since it uses as much as digits as its factorization.

113566481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16223790.

The product of its digits is 17280, while the sum is 35.

The square root of 113566481 is about 10656.7575275034. The cubic root of 113566481 is about 484.2653432574.

The spelling of 113566481 in words is "one hundred thirteen million, five hundred sixty-six thousand, four hundred eighty-one".