131551401151215 has 24 divisors (see below), whose sum is σ = 228150747556368. Its totient is φ = 70121264544000.

The previous prime is 131551401151123. The next prime is 131551401151241. The reversal of 131551401151215 is 512151104155131.

131551401151215 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 514 + 0 + 1 + 15 + 121 + 5 = 666.

It is not a de Polignac number, because 131551401151215 - 2¹⁵ = 131551401118447 is a prime.

It is a super-2 number, since 2×131551401151215² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131551401151215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 822476161 + ... + 822636090.

It is an arithmetic number, because the mean of its divisors is an integer number (9506281148182).

Almost surely, 2^{131551401151215} is an apocalyptic number.

131551401151215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131551401151215 is a deficient number, since it is larger than the sum of its proper divisors (96599346405153).

131551401151215 is a wasteful number, since it uses less digits than its factorization.

131551401151215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645114039 (or 1645114036 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 36.

The spelling of 131551401151215 in words is "one hundred thirty-one trillion, five hundred fifty-one billion, four hundred one million, one hundred fifty-one thousand, two hundred fifteen".