131712042 has 32 divisors (see below), whose sum is σ = 328425984. Its totient is φ = 34210800.

The previous prime is 131712041. The next prime is 131712083. The reversal of 131712042 is 240217131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (131712041) 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, 142084 + ... + 143007.

It is an arithmetic number, because the mean of its divisors is an integer number (10263312).

Almost surely, 2^131712042 is an apocalyptic number.

131712042 is an abundant number, since it is smaller than the sum of its proper divisors (196713942).

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

131712042 is a wasteful number, since it uses less digits than its factorization.

131712042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285114.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 131712042 is about 11476.5866876872. The cubic root of 131712042 is about 508.7938200740.

Adding to 131712042 its reverse (240217131), we get a palindrome (371929173).

The spelling of 131712042 in words is "one hundred thirty-one million, seven hundred twelve thousand, forty-two".