160561589 has 2 divisors, whose sum is σ = 160561590. Its totient is φ = 160561588.

The previous prime is 160561573. The next prime is 160561627. The reversal of 160561589 is 985165061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158508100 + 2053489 = 12590^2 + 1433^2 .

It is a cyclic number.

It is not a de Polignac number, because 160561589 - 2⁴ = 160561573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160561519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80280794 + 80280795.

It is an arithmetic number, because the mean of its divisors is an integer number (80280795).

Almost surely, 2^160561589 is an apocalyptic number.

It is an amenable number.

160561589 is a deficient number, since it is larger than the sum of its proper divisors (1).

160561589 is an equidigital number, since it uses as much as digits as its factorization.

160561589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 160561589 is about 12671.2899501195. The cubic root of 160561589 is about 543.5179429217.

The spelling of 160561589 in words is "one hundred sixty million, five hundred sixty-one thousand, five hundred eighty-nine".