131331142 has 8 divisors (see below), whose sum is σ = 197343432. Its totient is φ = 65550000.

The previous prime is 131331139. The next prime is 131331181. The reversal of 131331142 is 241133131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56359 + ... + 58642.

It is an arithmetic number, because the mean of its divisors is an integer number (24667929).

Almost surely, 2^131331142 is an apocalyptic number.

131331142 is a deficient number, since it is larger than the sum of its proper divisors (66012290).

131331142 is a wasteful number, since it uses less digits than its factorization.

131331142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115574.

The product of its digits is 216, while the sum is 19.

The square root of 131331142 is about 11459.9800174346. The cubic root of 131331142 is about 508.3028837325.

Adding to 131331142 its reverse (241133131), we get a palindrome (372464273).

The spelling of 131331142 in words is "one hundred thirty-one million, three hundred thirty-one thousand, one hundred forty-two".