422511461 has 2 divisors, whose sum is σ = 422511462. Its totient is φ = 422511460.

The previous prime is 422511457. The next prime is 422511487. The reversal of 422511461 is 164115224.

It is an a-pointer prime, because the next prime (422511487) can be obtained adding 422511461 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305200900 + 117310561 = 17470^2 + 10831^2 .

It is a cyclic number.

It is not a de Polignac number, because 422511461 - 2² = 422511457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422511461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422511491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211255730 + 211255731.

It is an arithmetic number, because the mean of its divisors is an integer number (211255731).

Almost surely, 2^422511461 is an apocalyptic number.

It is an amenable number.

422511461 is a deficient number, since it is larger than the sum of its proper divisors (1).

422511461 is an equidigital number, since it uses as much as digits as its factorization.

422511461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 26.

The square root of 422511461 is about 20555.0835804674. The cubic root of 422511461 is about 750.3769725646.

Adding to 422511461 its reverse (164115224), we get a palindrome (586626685).

The spelling of 422511461 in words is "four hundred twenty-two million, five hundred eleven thousand, four hundred sixty-one".