161160613 has 2 divisors, whose sum is σ = 161160614. Its totient is φ = 161160612.

The previous prime is 161160611. The next prime is 161160619. The reversal of 161160613 is 316061161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157326849 + 3833764 = 12543^2 + 1958^2 .

It is a cyclic number.

It is not a de Polignac number, because 161160613 - 2¹ = 161160611 is a prime.

Together with 161160611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161160611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80580306 + 80580307.

It is an arithmetic number, because the mean of its divisors is an integer number (80580307).

Almost surely, 2^161160613 is an apocalyptic number.

It is an amenable number.

161160613 is a deficient number, since it is larger than the sum of its proper divisors (1).

161160613 is an equidigital number, since it uses as much as digits as its factorization.

161160613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 161160613 is about 12694.9050016138. The cubic root of 161160613 is about 544.1930239279.

The spelling of 161160613 in words is "one hundred sixty-one million, one hundred sixty thousand, six hundred thirteen".