193856164 has 12 divisors (see below), whose sum is σ = 357103600. Its totient is φ = 91826568.

The previous prime is 193856147. The next prime is 193856177. The reversal of 193856164 is 461658391.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 193856164.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275294 + ... + 1275445.

Almost surely, 2^193856164 is an apocalyptic number.

It is an amenable number.

193856164 is a deficient number, since it is larger than the sum of its proper divisors (163247436).

193856164 is a wasteful number, since it uses less digits than its factorization.

193856164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550762 (or 2550760 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 193856164 is about 13923.2239082764. The cubic root of 193856164 is about 578.7529329496.

The spelling of 193856164 in words is "one hundred ninety-three million, eight hundred fifty-six thousand, one hundred sixty-four".