131619142 has 4 divisors (see below), whose sum is σ = 197428716. Its totient is φ = 65809570.

The previous prime is 131619127. The next prime is 131619181. The reversal of 131619142 is 241916131.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 131619142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32904784 + ... + 32904787.

It is an arithmetic number, because the mean of its divisors is an integer number (49357179).

Almost surely, 2^131619142 is an apocalyptic number.

131619142 is a deficient number, since it is larger than the sum of its proper divisors (65809574).

131619142 is an equidigital number, since it uses as much as digits as its factorization.

131619142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65809573.

The product of its digits is 1296, while the sum is 28.

The square root of 131619142 is about 11472.5386031166. The cubic root of 131619142 is about 508.6741700091.

The spelling of 131619142 in words is "one hundred thirty-one million, six hundred nineteen thousand, one hundred forty-two".