422631131 has 8 divisors (see below), whose sum is σ = 467442864. Its totient is φ = 379576800.

The previous prime is 422631113. The next prime is 422631149. The reversal of 422631131 is 131136224.

It is an interprime number because it is at equal distance from previous prime (422631113) and next prime (422631149).

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

It is a cyclic number.

It is not a de Polignac number, because 422631131 - 2²⁶ = 355522267 is a prime.

It is a super-2 number, since 2×422631131² = 357234145780678322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422631097 and 422631106.

It is not an unprimeable number, because it can be changed into a prime (422631631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438845 + ... + 439806.

It is an arithmetic number, because the mean of its divisors is an integer number (58430358).

Almost surely, 2^422631131 is an apocalyptic number.

422631131 is a deficient number, since it is larger than the sum of its proper divisors (44811733).

422631131 is a wasteful number, since it uses less digits than its factorization.

422631131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878701.

The product of its digits is 864, while the sum is 23.

The square root of 422631131 is about 20557.9943331056. The cubic root of 422631131 is about 750.4478101978.

Adding to 422631131 its reverse (131136224), we get a palindrome (553767355).

The spelling of 422631131 in words is "four hundred twenty-two million, six hundred thirty-one thousand, one hundred thirty-one".