131065215 has 16 divisors (see below), whose sum is σ = 210038400. Its totient is φ = 69790112.

The previous prime is 131065213. The next prime is 131065229. The reversal of 131065215 is 512560131.

It is a cyclic number.

It is not a de Polignac number, because 131065215 - 2¹ = 131065213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131065213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3256 + ... + 16514.

It is an arithmetic number, because the mean of its divisors is an integer number (13127400).

Almost surely, 2^131065215 is an apocalyptic number.

131065215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131065215 is a deficient number, since it is larger than the sum of its proper divisors (78973185).

131065215 is a wasteful number, since it uses less digits than its factorization.

131065215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13926.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 131065215 is about 11448.3717182838. The cubic root of 131065215 is about 507.9595714101.

The spelling of 131065215 in words is "one hundred thirty-one million, sixty-five thousand, two hundred fifteen".