113261531 has 8 divisors (see below), whose sum is σ = 120019824. Its totient is φ = 106513920.

The previous prime is 113261513. The next prime is 113261537. The reversal of 113261531 is 135162311.

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 113261531 - 2¹⁸ = 112999387 is a prime.

It is a super-2 number, since 2×113261531² = 25656348808927922, 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 = 113261497 and 113261506.

It is not an unprimeable number, because it can be changed into a prime (113261537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32531 + ... + 35843.

It is an arithmetic number, because the mean of its divisors is an integer number (15002478).

Almost surely, 2^113261531 is an apocalyptic number.

113261531 is a deficient number, since it is larger than the sum of its proper divisors (6758293).

113261531 is a wasteful number, since it uses less digits than its factorization.

113261531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5341.

The product of its digits is 540, while the sum is 23.

The square root of 113261531 is about 10642.4400867470. The cubic root of 113261531 is about 483.8315031145.

The spelling of 113261531 in words is "one hundred thirteen million, two hundred sixty-one thousand, five hundred thirty-one".