1613713253 has 8 divisors (see below), whose sum is σ = 1732044888. Its totient is φ = 1497982464.

The previous prime is 1613713249. The next prime is 1613713267. The reversal of 1613713253 is 3523173161.

It can be written as a sum of positive squares in 4 ways, for example, as 818360449 + 795352804 = 28607^2 + 28202^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1613713253 - 2² = 1613713249 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 (1613713553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648926 + ... + 651407.

It is an arithmetic number, because the mean of its divisors is an integer number (216505611).

Almost surely, 2^1613713253 is an apocalyptic number.

It is an amenable number.

1613713253 is a deficient number, since it is larger than the sum of its proper divisors (118331635).

1613713253 is a wasteful number, since it uses less digits than its factorization.

1613713253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300423.

The product of its digits is 11340, while the sum is 32.

The square root of 1613713253 is about 40171.0499364903. The cubic root of 1613713253 is about 1172.9390770258.

The spelling of 1613713253 in words is "one billion, six hundred thirteen million, seven hundred thirteen thousand, two hundred fifty-three".