196564361 has 4 divisors (see below), whose sum is σ = 224644992. Its totient is φ = 168483732.

The previous prime is 196564351. The next prime is 196564411. The reversal of 196564361 is 163465691.

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: 163465691 = 163 ⋅1002857.

It is a cyclic number.

It is not a de Polignac number, because 196564361 - 2⁶ = 196564297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196564301) 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, 14040305 + ... + 14040318.

It is an arithmetic number, because the mean of its divisors is an integer number (56161248).

Almost surely, 2^196564361 is an apocalyptic number.

It is an amenable number.

196564361 is a deficient number, since it is larger than the sum of its proper divisors (28080631).

196564361 is an equidigital number, since it uses as much as digits as its factorization.

196564361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28080630.

The product of its digits is 116640, while the sum is 41.

The square root of 196564361 is about 14020.1412617705. The cubic root of 196564361 is about 581.4355649704.

The spelling of 196564361 in words is "one hundred ninety-six million, five hundred sixty-four thousand, three hundred sixty-one".