610534681 has 3 divisors (see below), whose sum is σ = 610559391. Its totient is φ = 610509972.

The previous prime is 610534643. The next prime is 610534693. The reversal of 610534681 is 186435016.

It is a happy number.

The square root of 610534681 is 24709.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 411724681 + 198810000 = 20291^2 + 14100^2 .

It is not a de Polignac number, because 610534681 - 2²⁹ = 73663769 is a prime.

It is a super-2 number, since 2×610534681² = 745505193407543522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (610538681) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12355 + ... + 37063.

It is an arithmetic number, because the mean of its divisors is an integer number (203519797).

Almost surely, 2^610534681 is an apocalyptic number.

610534681 is the 24709-th square number.

610534681 is the 12355-th centered octagonal number.

It is an amenable number.

610534681 is a deficient number, since it is larger than the sum of its proper divisors (24710).

610534681 is an frugal number, since it uses more digits than its factorization.

610534681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49418 (or 24709 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The cubic root of 610534681 is about 848.3403282909.

Adding to 610534681 its reverse (186435016), we get a palindrome (796969697).

The spelling of 610534681 in words is "six hundred ten million, five hundred thirty-four thousand, six hundred eighty-one".