1613173323 has 32 divisors (see below), whose sum is σ = 2236723776. Its totient is φ = 1033371648.

The previous prime is 1613173307. The next prime is 1613173361. The reversal of 1613173323 is 3233713161.

It is not a de Polignac number, because 1613173323 - 2⁴ = 1613173307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1613173223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5505565 + ... + 5505857.

It is an arithmetic number, because the mean of its divisors is an integer number (69897618).

Almost surely, 2^1613173323 is an apocalyptic number.

1613173323 is a deficient number, since it is larger than the sum of its proper divisors (623550453).

1613173323 is a wasteful number, since it uses less digits than its factorization.

1613173323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its digits is 6804, while the sum is 30.

The square root of 1613173323 is about 40164.3289872992. The cubic root of 1613173323 is about 1172.8082450993.

Adding to 1613173323 its reverse (3233713161), we get a palindrome (4846886484).

It can be divided in two parts, 1613 and 173323, that added together give a triangular number (174936 = T₅₉₁).

The spelling of 1613173323 in words is "one billion, six hundred thirteen million, one hundred seventy-three thousand, three hundred twenty-three".