1612272713 has 4 divisors (see below), whose sum is σ = 1614992148. Its totient is φ = 1609553280.

The previous prime is 1612272709. The next prime is 1612272749. The reversal of 1612272713 is 3172722161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1321467904 + 290804809 = 36352^2 + 17053^2 .

It is a cyclic number.

It is not a de Polignac number, because 1612272713 - 2² = 1612272709 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 1612272713.

It is not an unprimeable number, because it can be changed into a prime (1612278713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358828 + ... + 1360013.

It is an arithmetic number, because the mean of its divisors is an integer number (403748037).

Almost surely, 2^1612272713 is an apocalyptic number.

It is an amenable number.

1612272713 is a deficient number, since it is larger than the sum of its proper divisors (2719435).

1612272713 is an equidigital number, since it uses as much as digits as its factorization.

1612272713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719434.

The product of its digits is 7056, while the sum is 32.

The square root of 1612272713 is about 40153.1158566804. The cubic root of 1612272713 is about 1172.5899508340.

Adding to 1612272713 its reverse (3172722161), we get a palindrome (4784994874).

The spelling of 1612272713 in words is "one billion, six hundred twelve million, two hundred seventy-two thousand, seven hundred thirteen".