1613072073 has 16 divisors (see below), whose sum is σ = 2243042816. Its totient is φ = 1029957120.

The previous prime is 1613072059. The next prime is 1613072093. The reversal of 1613072073 is 3702703161.

It is not a de Polignac number, because 1613072073 - 2⁹ = 1613071561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1613072073.

It is not an unprimeable number, because it can be changed into a prime (1613072003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80386 + ... + 98427.

It is an arithmetic number, because the mean of its divisors is an integer number (140190176).

Almost surely, 2^1613072073 is an apocalyptic number.

It is an amenable number.

1613072073 is a deficient number, since it is larger than the sum of its proper divisors (629970743).

1613072073 is a wasteful number, since it uses less digits than its factorization.

1613072073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178944.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 1613072073 is about 40163.0685207194. The cubic root of 1613072073 is about 1172.7837076823.

The spelling of 1613072073 in words is "one billion, six hundred thirteen million, seventy-two thousand, seventy-three".