131144222 has 32 divisors (see below), whose sum is σ = 229379040. Its totient is φ = 55572480.

The previous prime is 131144201. The next prime is 131144261. The reversal of 131144222 is 222441131.

It is a junction number, because it is equal to n+sod(n) for n = 131144194 and 131144203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39158 + ... + 42374.

It is an arithmetic number, because the mean of its divisors is an integer number (7168095).

Almost surely, 2^131144222 is an apocalyptic number.

131144222 is a deficient number, since it is larger than the sum of its proper divisors (98234818).

131144222 is a wasteful number, since it uses less digits than its factorization.

131144222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356.

The product of its digits is 384, while the sum is 20.

The square root of 131144222 is about 11451.8217764686. The cubic root of 131144222 is about 508.0616180656.

Adding to 131144222 its reverse (222441131), we get a palindrome (353585353).

The spelling of 131144222 in words is "one hundred thirty-one million, one hundred forty-four thousand, two hundred twenty-two".