131133365 has 16 divisors (see below), whose sum is σ = 176307840. Its totient is φ = 92790720.

The previous prime is 131133349. The next prime is 131133371. The reversal of 131133365 is 563331131.

It is a happy number.

It is not a de Polignac number, because 131133365 - 2⁴ = 131133349 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30185 + ... + 34254.

It is an arithmetic number, because the mean of its divisors is an integer number (11019240).

Almost surely, 2^131133365 is an apocalyptic number.

It is an amenable number.

131133365 is a deficient number, since it is larger than the sum of its proper divisors (45174475).

131133365 is a wasteful number, since it uses less digits than its factorization.

131133365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64492.

The product of its digits is 2430, while the sum is 26.

The square root of 131133365 is about 11451.3477372753. The cubic root of 131133365 is about 508.0475974271.

Adding to 131133365 its reverse (563331131), we get a palindrome (694464496).

The spelling of 131133365 in words is "one hundred thirty-one million, one hundred thirty-three thousand, three hundred sixty-five".