131387342 has 16 divisors (see below), whose sum is σ = 205493760. Its totient is φ = 62925408.

The previous prime is 131387323. The next prime is 131387359. The reversal of 131387342 is 243783131.

It is a super-4 number, since 4×131387342⁴ (a number of 34 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131387299 and 131387308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1553 + ... + 16284.

It is an arithmetic number, because the mean of its divisors is an integer number (12843360).

Almost surely, 2^131387342 is an apocalyptic number.

131387342 is a deficient number, since it is larger than the sum of its proper divisors (74106418).

131387342 is a wasteful number, since it uses less digits than its factorization.

131387342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17995.

The product of its digits is 12096, while the sum is 32.

The square root of 131387342 is about 11462.4317664272. The cubic root of 131387342 is about 508.3753787194.

The spelling of 131387342 in words is "one hundred thirty-one million, three hundred eighty-seven thousand, three hundred forty-two".