131422442 has 8 divisors (see below), whose sum is σ = 197194500. Its totient is φ = 65690944.

The previous prime is 131422381. The next prime is 131422453. The reversal of 131422442 is 244224131.

131422442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 127215841 + 4206601 = 11279^2 + 2051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×131422442² = 34543716522486728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17 + ... + 16212.

Almost surely, 2^131422442 is an apocalyptic number.

131422442 is a deficient number, since it is larger than the sum of its proper divisors (65772058).

131422442 is a wasteful number, since it uses less digits than its factorization.

131422442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20280.

The product of its digits is 1536, while the sum is 23.

The square root of 131422442 is about 11463.9627529053. The cubic root of 131422442 is about 508.4206453505.

Adding to 131422442 its reverse (244224131), we get a palindrome (375646573).

The spelling of 131422442 in words is "one hundred thirty-one million, four hundred twenty-two thousand, four hundred forty-two".