131440022 has 32 divisors (see below), whose sum is σ = 240081408. Its totient is φ = 52684416.

The previous prime is 131440019. The next prime is 131440033. The reversal of 131440022 is 220044131.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 38093 + ... + 41399.

It is an arithmetic number, because the mean of its divisors is an integer number (7502544).

Almost surely, 2^131440022 is an apocalyptic number.

131440022 is a deficient number, since it is larger than the sum of its proper divisors (108641386).

131440022 is a wasteful number, since it uses less digits than its factorization.

131440022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 131440022 is about 11464.7294778377. The cubic root of 131440022 is about 508.4433143262.

Adding to 131440022 its reverse (220044131), we get a palindrome (351484153).

The spelling of 131440022 in words is "one hundred thirty-one million, four hundred forty thousand, twenty-two".