113531433 has 16 divisors (see below), whose sum is σ = 158940480. Its totient is φ = 71983296.

The previous prime is 113531417. The next prime is 113531449. The reversal of 113531433 is 334135311.

It is an interprime number because it is at equal distance from previous prime (113531417) and next prime (113531449).

It is not a de Polignac number, because 113531433 - 2⁴ = 113531417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113531533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3910 + ... + 15567.

It is an arithmetic number, because the mean of its divisors is an integer number (9933780).

Almost surely, 2^113531433 is an apocalyptic number.

It is an amenable number.

113531433 is a deficient number, since it is larger than the sum of its proper divisors (45409047).

113531433 is a wasteful number, since it uses less digits than its factorization.

113531433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19576.

The product of its digits is 1620, while the sum is 24.

The square root of 113531433 is about 10655.1129979930. The cubic root of 113531433 is about 484.2155214030.

Adding to 113531433 its reverse (334135311), we get a palindrome (447666744).

The spelling of 113531433 in words is "one hundred thirteen million, five hundred thirty-one thousand, four hundred thirty-three".