1613712325 has 6 divisors (see below), whose sum is σ = 2001003314. Its totient is φ = 1290969840.

The previous prime is 1613712323. The next prime is 1613712343. The reversal of 1613712325 is 5232173161.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 806404 + 1612905921 = 898^2 + 40161^2 .

It is not a de Polignac number, because 1613712325 - 2¹ = 1613712323 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 (1613712323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32274222 + ... + 32274271.

Almost surely, 2^1613712325 is an apocalyptic number.

It is an amenable number.

1613712325 is a deficient number, since it is larger than the sum of its proper divisors (387290989).

1613712325 is an equidigital number, since it uses as much as digits as its factorization.

1613712325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64548503 (or 64548498 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 1613712325 is about 40171.0383858819. The cubic root of 1613712325 is about 1172.9388521846.

Adding to 1613712325 its reverse (5232173161), we get a palindrome (6845885486).

The spelling of 1613712325 in words is "one billion, six hundred thirteen million, seven hundred twelve thousand, three hundred twenty-five".