131432242 has 16 divisors (see below), whose sum is σ = 198772992. Its totient is φ = 65177280.

The previous prime is 131432239. The next prime is 131432261. The reversal of 131432242 is 242234131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176523 + ... + 177265.

It is an arithmetic number, because the mean of its divisors is an integer number (12423312).

Almost surely, 2^131432242 is an apocalyptic number.

131432242 is a deficient number, since it is larger than the sum of its proper divisors (67340750).

131432242 is a wasteful number, since it uses less digits than its factorization.

131432242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353.

The product of its digits is 1152, while the sum is 22.

The square root of 131432242 is about 11464.3901713087. The cubic root of 131432242 is about 508.4332824577.

Adding to 131432242 its reverse (242234131), we get a palindrome (373666373).

The spelling of 131432242 in words is "one hundred thirty-one million, four hundred thirty-two thousand, two hundred forty-two".