422871131 has 2 divisors, whose sum is σ = 422871132. Its totient is φ = 422871130.

The previous prime is 422871067. The next prime is 422871133. The reversal of 422871131 is 131178224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422871131 - 2⁶ = 422871067 is a prime.

It is a super-2 number, since 2×422871131² = 357639986866438322, which contains 22 as substring.

Together with 422871133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 422871094 and 422871103.

It is not a weakly prime, because it can be changed into another prime (422871133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211435565 + 211435566.

It is an arithmetic number, because the mean of its divisors is an integer number (211435566).

Almost surely, 2^422871131 is an apocalyptic number.

422871131 is a deficient number, since it is larger than the sum of its proper divisors (1).

422871131 is an equidigital number, since it uses as much as digits as its factorization.

422871131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 29.

The square root of 422871131 is about 20563.8306499543. The cubic root of 422871131 is about 750.5898358551.

The spelling of 422871131 in words is "four hundred twenty-two million, eight hundred seventy-one thousand, one hundred thirty-one".