113575639 has 4 divisors (see below), whose sum is σ = 113709024. Its totient is φ = 113442256.

The previous prime is 113575613. The next prime is 113575643. The reversal of 113575639 is 936575311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936575311 = 7 ⋅133796473.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113575639 is a prime.

It is a super-3 number, since 3×113575639³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113575669) 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, 65407 + ... + 67120.

It is an arithmetic number, because the mean of its divisors is an integer number (28427256).

Almost surely, 2^113575639 is an apocalyptic number.

113575639 is a deficient number, since it is larger than the sum of its proper divisors (133385).

113575639 is an equidigital number, since it uses as much as digits as its factorization.

113575639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133384.

The product of its digits is 85050, while the sum is 40.

The square root of 113575639 is about 10657.1871992567. The cubic root of 113575639 is about 484.2783599584.

The spelling of 113575639 in words is "one hundred thirteen million, five hundred seventy-five thousand, six hundred thirty-nine".