422531497 has 2 divisors, whose sum is σ = 422531498. Its totient is φ = 422531496.

The previous prime is 422531489. The next prime is 422531531. The reversal of 422531497 is 794135224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413674921 + 8856576 = 20339^2 + 2976^2 .

It is a cyclic number.

It is not a de Polignac number, because 422531497 - 2³ = 422531489 is a prime.

It is a super-2 number, since 2×422531497² = 357065731914122018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (422537497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211265748 + 211265749.

It is an arithmetic number, because the mean of its divisors is an integer number (211265749).

Almost surely, 2^422531497 is an apocalyptic number.

It is an amenable number.

422531497 is a deficient number, since it is larger than the sum of its proper divisors (1).

422531497 is an equidigital number, since it uses as much as digits as its factorization.

422531497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 422531497 is about 20555.5709480423. The cubic root of 422531497 is about 750.3888336356.

The spelling of 422531497 in words is "four hundred twenty-two million, five hundred thirty-one thousand, four hundred ninety-seven".