131187028419 has 24 divisors (see below), whose sum is σ = 189801612000. Its totient is φ = 87315419520.

The previous prime is 131187028393. The next prime is 131187028429. The reversal of 131187028419 is 914820781131.

It is a happy number.

131187028419 is a `hidden beast` number, since 1 + 31 + 187 + 0 + 28 + 419 = 666.

It is not a de Polignac number, because 131187028419 - 2⁸ = 131187028163 is a prime.

It is a super-2 number, since 2×131187028419² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131187028429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17282677 + ... + 17290265.

It is an arithmetic number, because the mean of its divisors is an integer number (7908400500).

Almost surely, 2^131187028419 is an apocalyptic number.

131187028419 is a deficient number, since it is larger than the sum of its proper divisors (58614583581).

131187028419 is a wasteful number, since it uses less digits than its factorization.

131187028419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10475 (or 10472 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 131187028419 in words is "one hundred thirty-one billion, one hundred eighty-seven million, twenty-eight thousand, four hundred nineteen".