1613145344 has 36 divisors (see below), whose sum is σ = 3294895296. Its totient is φ = 787809792.

The previous prime is 1613145337. The next prime is 1613145361. The reversal of 1613145344 is 4435413161.

It is a happy number.

It is a super-4 number, since 4×1613145344⁴ (a number of 38 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1613145344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62264 + ... + 84279.

Almost surely, 2^1613145344 is an apocalyptic number.

It is an amenable number.

1613145344 is an abundant number, since it is smaller than the sum of its proper divisors (1681749952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1613145344 is an equidigital number, since it uses as much as digits as its factorization.

1613145344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146602 (or 146588 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 1613145344 is about 40163.9806792106. The cubic root of 1613145344 is about 1172.8014646351.

The spelling of 1613145344 in words is "one billion, six hundred thirteen million, one hundred forty-five thousand, three hundred forty-four".