113665481 has 4 divisors (see below), whose sum is σ = 114137364. Its totient is φ = 113193600.

The previous prime is 113665477. The next prime is 113665507. The reversal of 113665481 is 184566311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184566311 = 6917 ⋅26683.

It can be written as a sum of positive squares in 2 ways, for example, as 30691600 + 82973881 = 5540^2 + 9109^2 .

It is a cyclic number.

It is not a de Polignac number, because 113665481 - 2² = 113665477 is a prime.

It is a super-2 number, since 2×113665481² = 25839683141922722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113665421) 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, 235580 + ... + 236061.

It is an arithmetic number, because the mean of its divisors is an integer number (28534341).

Almost surely, 2^113665481 is an apocalyptic number.

It is an amenable number.

113665481 is a deficient number, since it is larger than the sum of its proper divisors (471883).

113665481 is an equidigital number, since it uses as much as digits as its factorization.

113665481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471882.

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

The square root of 113665481 is about 10661.4014557187. The cubic root of 113665481 is about 484.4060195799.

The spelling of 113665481 in words is "one hundred thirteen million, six hundred sixty-five thousand, four hundred eighty-one".