422135653 has 12 divisors (see below), whose sum is σ = 450424260. Its totient is φ = 395535872.

The previous prime is 422135617. The next prime is 422135657. The reversal of 422135653 is 356531224.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 777924 + 421357729 = 882^2 + 20527^2 .

It is a de Polignac number, because none of the positive numbers 2^k-422135653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422135657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64203 + ... + 70471.

It is an arithmetic number, because the mean of its divisors is an integer number (37535355).

Almost surely, 2^422135653 is an apocalyptic number.

It is an amenable number.

422135653 is a deficient number, since it is larger than the sum of its proper divisors (28288607).

422135653 is a wasteful number, since it uses less digits than its factorization.

422135653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536 (or 6519 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 422135653 is about 20545.9400612384. The cubic root of 422135653 is about 750.1544292370.

Adding to 422135653 its reverse (356531224), we get a palindrome (778666877).

The spelling of 422135653 in words is "four hundred twenty-two million, one hundred thirty-five thousand, six hundred fifty-three".