131499342 has 64 divisors (see below), whose sum is σ = 331296000. Its totient is φ = 38327904.

The previous prime is 131499337. The next prime is 131499367. The reversal of 131499342 is 243994131.

131499342 is a `hidden beast` number, since 131 + 499 + 34 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 131499297 and 131499306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8409 + ... + 18267.

It is an arithmetic number, because the mean of its divisors is an integer number (5176500).

Almost surely, 2^131499342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131499342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165648000).

131499342 is an abundant number, since it is smaller than the sum of its proper divisors (199796658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131499342 is a wasteful number, since it uses less digits than its factorization.

131499342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9902 (or 9896 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 131499342 is about 11467.3162509804. The cubic root of 131499342 is about 508.5197910867.

It can be divided in two parts, 131499 and 342, that added together give a triangular number (131841 = T₅₁₃).

The spelling of 131499342 in words is "one hundred thirty-one million, four hundred ninety-nine thousand, three hundred forty-two".