610731213 has 64 divisors (see below), whose sum is σ = 923235840. Its totient is φ = 357654528.

The previous prime is 610731169. The next prime is 610731223. The reversal of 610731213 is 312137016.

It is a de Polignac number, because none of the positive numbers 2^k-610731213 is a prime.

It is a super-2 number, since 2×610731213² = 745985229064902738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610731223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5404645 + ... + 5404757.

It is an arithmetic number, because the mean of its divisors is an integer number (14425560).

Almost surely, 2^610731213 is an apocalyptic number.

It is an amenable number.

610731213 is a deficient number, since it is larger than the sum of its proper divisors (312504627).

610731213 is a wasteful number, since it uses less digits than its factorization.

610731213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 610731213 is about 24712.9766114890. The cubic root of 610731213 is about 848.4313458531.

Adding to 610731213 its reverse (312137016), we get a palindrome (922868229).

The spelling of 610731213 in words is "six hundred ten million, seven hundred thirty-one thousand, two hundred thirteen".