113523601 has 4 divisors (see below), whose sum is σ = 113634532. Its totient is φ = 113412672.

The previous prime is 113523593. The next prime is 113523617. The reversal of 113523601 is 106325311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73530625 + 39992976 = 8575^2 + 6324^2 .

It is a cyclic number.

It is not a de Polignac number, because 113523601 - 2³ = 113523593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113523691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53916 + ... + 55981.

It is an arithmetic number, because the mean of its divisors is an integer number (28408633).

Almost surely, 2^113523601 is an apocalyptic number.

It is an amenable number.

113523601 is a deficient number, since it is larger than the sum of its proper divisors (110931).

113523601 is a wasteful number, since it uses less digits than its factorization.

113523601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110930.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 113523601 is about 10654.7454685694. The cubic root of 113523601 is about 484.2043865626.

Adding to 113523601 its reverse (106325311), we get a palindrome (219848912).

The spelling of 113523601 in words is "one hundred thirteen million, five hundred twenty-three thousand, six hundred one".