131444242 has 16 divisors (see below), whose sum is σ = 211962240. Its totient is φ = 60937488.

The previous prime is 131444233. The next prime is 131444251. The reversal of 131444242 is 242444131.

It is an interprime number because it is at equal distance from previous prime (131444233) and next prime (131444251).

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, 35013 + ... + 38584.

It is an arithmetic number, because the mean of its divisors is an integer number (13247640).

Almost surely, 2^131444242 is an apocalyptic number.

131444242 is a deficient number, since it is larger than the sum of its proper divisors (80517998).

131444242 is a wasteful number, since it uses less digits than its factorization.

131444242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73665.

The product of its digits is 3072, while the sum is 25.

The square root of 131444242 is about 11464.9135190807. The cubic root of 131444242 is about 508.4487556111.

Adding to 131444242 its reverse (242444131), we get a palindrome (373888373).

The spelling of 131444242 in words is "one hundred thirty-one million, four hundred forty-four thousand, two hundred forty-two".