131113533 has 8 divisors (see below), whose sum is σ = 179543008. Its totient is φ = 85046544.

The previous prime is 131113483. The next prime is 131113589. The reversal of 131113533 is 335311131.

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

It is not a de Polignac number, because 131113533 - 2⁸ = 131113277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131113733) 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, 590491 + ... + 590712.

It is an arithmetic number, because the mean of its divisors is an integer number (22442876).

Almost surely, 2^131113533 is an apocalyptic number.

It is an amenable number.

131113533 is a deficient number, since it is larger than the sum of its proper divisors (48429475).

131113533 is a wasteful number, since it uses less digits than its factorization.

131113533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181243.

The product of its digits is 405, while the sum is 21.

The square root of 131113533 is about 11450.4817802571. The cubic root of 131113533 is about 508.0219845509.

Adding to 131113533 its reverse (335311131), we get a palindrome (466424664).

The spelling of 131113533 in words is "one hundred thirty-one million, one hundred thirteen thousand, five hundred thirty-three".