113533531 has 8 divisors (see below), whose sum is σ = 126539280. Its totient is φ = 101230848.

The previous prime is 113533477. The next prime is 113533549. The reversal of 113533531 is 135335311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113533531 - 2⁹ = 113533019 is a prime.

It is a super-2 number, since 2×113533531² = 25779725322655922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113533496 and 113533505.

It is not an unprimeable number, because it can be changed into a prime (113533561) 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 7 ways as a sum of consecutive naturals, for example, 175426 + ... + 176071.

It is an arithmetic number, because the mean of its divisors is an integer number (15817410).

Almost surely, 2^113533531 is an apocalyptic number.

113533531 is a deficient number, since it is larger than the sum of its proper divisors (13005749).

113533531 is a wasteful number, since it uses less digits than its factorization.

113533531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351533.

The product of its digits is 2025, while the sum is 25.

The square root of 113533531 is about 10655.2114479254. The cubic root of 113533531 is about 484.2185040657.

Adding to 113533531 its reverse (135335311), we get a palindrome (248868842).

It can be divided in two parts, 11353 and 3531, that added together give a square (14884 = 122²).

The spelling of 113533531 in words is "one hundred thirteen million, five hundred thirty-three thousand, five hundred thirty-one".