422400131 has 2 divisors, whose sum is σ = 422400132. Its totient is φ = 422400130.

The previous prime is 422400127. The next prime is 422400151. The reversal of 422400131 is 131004224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422400131 - 2² = 422400127 is a prime.

It is a super-2 number, since 2×422400131² = 356843741337634322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422400101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211200065 + 211200066.

It is an arithmetic number, because the mean of its divisors is an integer number (211200066).

Almost surely, 2^422400131 is an apocalyptic number.

422400131 is a deficient number, since it is larger than the sum of its proper divisors (1).

422400131 is an equidigital number, since it uses as much as digits as its factorization.

422400131 is an evil number, because the sum of its binary digits is even.

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

The square root of 422400131 is about 20552.3753128440. The cubic root of 422400131 is about 750.3110597120.

Adding to 422400131 its reverse (131004224), we get a palindrome (553404355).

The spelling of 422400131 in words is "four hundred twenty-two million, four hundred thousand, one hundred thirty-one".