1613346845 has 54 divisors (see below), whose sum is σ = 2256336222. Its totient is φ = 1106520800.

The previous prime is 1613346841. The next prime is 1613346851. The reversal of 1613346845 is 5486433161.

It can be written as a sum of positive squares in only one way, i.e., 1290677476 + 322669369 = 35926^2 + 17963^2 .

It is not a de Polignac number, because 1613346845 - 2² = 1613346841 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 (1613346841) 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 53 ways as a sum of consecutive naturals, for example, 22723160 + ... + 22723230.

Almost surely, 2^1613346845 is an apocalyptic number.

It is an amenable number.

1613346845 is a deficient number, since it is larger than the sum of its proper divisors (642989377).

1613346845 is an equidigital number, since it uses as much as digits as its factorization.

1613346845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 110 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 1613346845 is about 40166.4890798287. The cubic root of 1613346845 is about 1172.8502948764.

The spelling of 1613346845 in words is "one billion, six hundred thirteen million, three hundred forty-six thousand, eight hundred forty-five".