613137361 has 4 divisors (see below), whose sum is σ = 614012724. Its totient is φ = 612262000.

The previous prime is 613137359. The next prime is 613137373. The reversal of 613137361 is 163731316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 377330625 + 235806736 = 19425^2 + 15356^2 .

It is a cyclic number.

It is not a de Polignac number, because 613137361 - 2¹ = 613137359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613137461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436630 + ... + 438031.

It is an arithmetic number, because the mean of its divisors is an integer number (153503181).

Almost surely, 2^613137361 is an apocalyptic number.

It is an amenable number.

613137361 is a deficient number, since it is larger than the sum of its proper divisors (875363).

613137361 is an equidigital number, since it uses as much as digits as its factorization.

613137361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875362.

The product of its digits is 6804, while the sum is 31.

The square root of 613137361 is about 24761.6106301670. The cubic root of 613137361 is about 849.5440973861.

Adding to 613137361 its reverse (163731316), we get a palindrome (776868677).

The spelling of 613137361 in words is "six hundred thirteen million, one hundred thirty-seven thousand, three hundred sixty-one".