131944842 has 32 divisors (see below), whose sum is σ = 297595200. Its totient is φ = 43323984.

The previous prime is 131944823. The next prime is 131944843. The reversal of 131944842 is 248449131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131944797 and 131944806.

It is not an unprimeable number, because it can be changed into a prime (131944843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14617 + ... + 21852.

It is an arithmetic number, because the mean of its divisors is an integer number (9299850).

Almost surely, 2^131944842 is an apocalyptic number.

131944842 is an abundant number, since it is smaller than the sum of its proper divisors (165650358).

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

131944842 is a wasteful number, since it uses less digits than its factorization.

131944842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36547 (or 36541 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 131944842 is about 11486.7245984223. The cubic root of 131944842 is about 509.0934066648.

The spelling of 131944842 in words is "one hundred thirty-one million, nine hundred forty-four thousand, eight hundred forty-two".