131142342 has 32 divisors (see below), whose sum is σ = 265252320. Its totient is φ = 43223040.

The previous prime is 131142337. The next prime is 131142353. The reversal of 131142342 is 243241131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311292 + ... + 311712.

It is an arithmetic number, because the mean of its divisors is an integer number (8289135).

Almost surely, 2^131142342 is an apocalyptic number.

131142342 is an abundant number, since it is smaller than the sum of its proper divisors (134109978).

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

131142342 is a wasteful number, since it uses less digits than its factorization.

131142342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888.

The product of its digits is 576, while the sum is 21.

The square root of 131142342 is about 11451.7396931645. The cubic root of 131142342 is about 508.0591903048.

Adding to 131142342 its reverse (243241131), we get a palindrome (374383473).

The spelling of 131142342 in words is "one hundred thirty-one million, one hundred forty-two thousand, three hundred forty-two".