131267242 has 16 divisors (see below), whose sum is σ = 200558592. Its totient is φ = 64419120.

The previous prime is 131267209. The next prime is 131267243. The reversal of 131267242 is 242762131.

It is a self number, because there is not a number n which added to its sum of digits gives 131267242.

It is not an unprimeable number, because it can be changed into a prime (131267243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78103 + ... + 79765.

It is an arithmetic number, because the mean of its divisors is an integer number (12534912).

Almost surely, 2^131267242 is an apocalyptic number.

131267242 is a deficient number, since it is larger than the sum of its proper divisors (69291350).

131267242 is a wasteful number, since it uses less digits than its factorization.

131267242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373.

The product of its digits is 4032, while the sum is 28.

The square root of 131267242 is about 11457.1917152503. The cubic root of 131267242 is about 508.2204310279.

The spelling of 131267242 in words is "one hundred thirty-one million, two hundred sixty-seven thousand, two hundred forty-two".