1613456423 has 4 divisors (see below), whose sum is σ = 1613818920. Its totient is φ = 1613093928.

The previous prime is 1613456407. The next prime is 1613456437. The reversal of 1613456423 is 3246543161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3246543161 = 24359 ⋅133279.

It is a cyclic number.

It is not a de Polignac number, because 1613456423 - 2⁴ = 1613456407 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 (1613456623) 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 3 ways as a sum of consecutive naturals, for example, 174488 + ... + 183501.

It is an arithmetic number, because the mean of its divisors is an integer number (403454730).

Almost surely, 2^1613456423 is an apocalyptic number.

1613456423 is a deficient number, since it is larger than the sum of its proper divisors (362497).

1613456423 is an equidigital number, since it uses as much as digits as its factorization.

1613456423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362496.

The product of its digits is 51840, while the sum is 35.

The square root of 1613456423 is about 40167.8531041927. The cubic root of 1613456423 is about 1172.8768474805.

Adding to 1613456423 its reverse (3246543161), we get a palindrome (4859999584).

The spelling of 1613456423 in words is "one billion, six hundred thirteen million, four hundred fifty-six thousand, four hundred twenty-three".