1613265 has 16 divisors (see below), whose sum is σ = 2604096. Its totient is φ = 852800.

The previous prime is 1613201. The next prime is 1613279. The reversal of 1613265 is 5623161.

It is not a de Polignac number, because 1613265 - 2⁶ = 1613201 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555 + ... + 2375.

It is an arithmetic number, because the mean of its divisors is an integer number (162756).

2^1613265 is an apocalyptic number.

1613265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1613265 is a deficient number, since it is larger than the sum of its proper divisors (990831).

1613265 is a wasteful number, since it uses less digits than its factorization.

1613265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

The product of its digits is 1080, while the sum is 24.

The square root of 1613265 is about 1270.1436926584. The cubic root of 1613265 is about 117.2830461663.

The spelling of 1613265 in words is "one million, six hundred thirteen thousand, two hundred sixty-five".