131215342 has 8 divisors (see below), whose sum is σ = 197640432. Its totient is φ = 65335200.

The previous prime is 131215321. The next prime is 131215361. The reversal of 131215342 is 243512131.

It is a happy number.

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, 135634 + ... + 136597.

It is an arithmetic number, because the mean of its divisors is an integer number (24705054).

Almost surely, 2^131215342 is an apocalyptic number.

131215342 is a deficient number, since it is larger than the sum of its proper divisors (66425090).

131215342 is a wasteful number, since it uses less digits than its factorization.

131215342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272474.

The product of its digits is 720, while the sum is 22.

The square root of 131215342 is about 11454.9265383939. The cubic root of 131215342 is about 508.1534427045.

Adding to 131215342 its reverse (243512131), we get a palindrome (374727473).

The spelling of 131215342 in words is "one hundred thirty-one million, two hundred fifteen thousand, three hundred forty-two".