131122015 has 16 divisors (see below), whose sum is σ = 160916832. Its totient is φ = 102541824.

The previous prime is 131121997. The next prime is 131122031. The reversal of 131122015 is 510221131.

It is a cyclic number.

It is not a de Polignac number, because 131122015 - 2⁹ = 131121503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131122015.

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, 44467 + ... + 47323.

It is an arithmetic number, because the mean of its divisors is an integer number (10057302).

Almost surely, 2^131122015 is an apocalyptic number.

131122015 is a deficient number, since it is larger than the sum of its proper divisors (29794817).

131122015 is a wasteful number, since it uses less digits than its factorization.

131122015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 131122015 is about 11450.8521516960. The cubic root of 131122015 is about 508.0329393050.

Adding to 131122015 its reverse (510221131), we get a palindrome (641343146).

The spelling of 131122015 in words is "one hundred thirty-one million, one hundred twenty-two thousand, fifteen".