161353061 has 2 divisors, whose sum is σ = 161353062. Its totient is φ = 161353060.

The previous prime is 161353051. The next prime is 161353063. The reversal of 161353061 is 160353161.

161353061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157377025 + 3976036 = 12545^2 + 1994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161353061 is a prime.

Together with 161353063, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161353061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161353063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80676530 + 80676531.

It is an arithmetic number, because the mean of its divisors is an integer number (80676531).

Almost surely, 2^161353061 is an apocalyptic number.

It is an amenable number.

161353061 is a deficient number, since it is larger than the sum of its proper divisors (1).

161353061 is an equidigital number, since it uses as much as digits as its factorization.

161353061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 161353061 is about 12702.4824739104. The cubic root of 161353061 is about 544.4095516056.

The spelling of 161353061 in words is "one hundred sixty-one million, three hundred fifty-three thousand, sixty-one".