189596161 has 4 divisors (see below), whose sum is σ = 190446592. Its totient is φ = 188745732.

The previous prime is 189596123. The next prime is 189596179. The reversal of 189596161 is 161695981.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161695981 = 3109 ⋅52009.

It is a cyclic number.

It is not a de Polignac number, because 189596161 - 2¹¹ = 189594113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189596101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424881 + ... + 425326.

It is an arithmetic number, because the mean of its divisors is an integer number (47611648).

Almost surely, 2^189596161 is an apocalyptic number.

It is an amenable number.

189596161 is a deficient number, since it is larger than the sum of its proper divisors (850431).

189596161 is an equidigital number, since it uses as much as digits as its factorization.

189596161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850430.

The product of its digits is 116640, while the sum is 46.

The square root of 189596161 is about 13769.3921797587. The cubic root of 189596161 is about 574.4821156766.

The spelling of 189596161 in words is "one hundred eighty-nine million, five hundred ninety-six thousand, one hundred sixty-one".