131442163515 has 48 divisors (see below), whose sum is σ = 245528468640. Its totient is φ = 64665216000.

The previous prime is 131442163493. The next prime is 131442163553. The reversal of 131442163515 is 515361244131.

131442163515 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 4 + 2 + 1 + 635 + 15 = 666.

It is not a de Polignac number, because 131442163515 - 2¹³ = 131442155323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131442163515.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 776515 + ... + 930515.

It is an arithmetic number, because the mean of its divisors is an integer number (5115176430).

Almost surely, 2^131442163515 is an apocalyptic number.

131442163515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131442163515 is a deficient number, since it is larger than the sum of its proper divisors (114086305125).

131442163515 is a wasteful number, since it uses less digits than its factorization.

131442163515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155484 (or 155481 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The spelling of 131442163515 in words is "one hundred thirty-one billion, four hundred forty-two million, one hundred sixty-three thousand, five hundred fifteen".