131122442 has 16 divisors (see below), whose sum is σ = 216692064. Its totient is φ = 59010000.

The previous prime is 131122429. The next prime is 131122457. The reversal of 131122442 is 244221131.

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, 27284 + ... + 31727.

It is an arithmetic number, because the mean of its divisors is an integer number (13543254).

Almost surely, 2^131122442 is an apocalyptic number.

131122442 is a deficient number, since it is larger than the sum of its proper divisors (85569622).

131122442 is a wasteful number, since it uses less digits than its factorization.

131122442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59125.

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

The square root of 131122442 is about 11450.8707965814. The cubic root of 131122442 is about 508.0334907757.

Adding to 131122442 its reverse (244221131), we get a palindrome (375343573).

The spelling of 131122442 in words is "one hundred thirty-one million, one hundred twenty-two thousand, four hundred forty-two".