131244042 has 16 divisors (see below), whose sum is σ = 265037760. Its totient is φ = 43323072.

The previous prime is 131244037. The next prime is 131244119. The reversal of 131244042 is 240442131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105567 + ... + 106802.

It is an arithmetic number, because the mean of its divisors is an integer number (16564860).

Almost surely, 2^131244042 is an apocalyptic number.

131244042 is an abundant number, since it is smaller than the sum of its proper divisors (133793718).

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

131244042 is a wasteful number, since it uses less digits than its factorization.

131244042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212477.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 131244042 is about 11456.1792060006. The cubic root of 131244042 is about 508.1904885266.

Adding to 131244042 its reverse (240442131), we get a palindrome (371686173).

It can be divided in two parts, 1312 and 44042, that added together give a palindrome (45354).

The spelling of 131244042 in words is "one hundred thirty-one million, two hundred forty-four thousand, forty-two".