196123187 has 24 divisors (see below), whose sum is σ = 226926000. Its totient is φ = 168023808.

The previous prime is 196123183. The next prime is 196123211. The reversal of 196123187 is 781321691.

196123187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 196123187 - 2² = 196123183 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196123187.

It is not an unprimeable number, because it can be changed into a prime (196123183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1316189 + ... + 1316337.

It is an arithmetic number, because the mean of its divisors is an integer number (9455250).

Almost surely, 2^196123187 is an apocalyptic number.

196123187 is a deficient number, since it is larger than the sum of its proper divisors (30802813).

196123187 is a wasteful number, since it uses less digits than its factorization.

196123187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 254 counting only the distinct ones).

The product of its digits is 18144, while the sum is 38.

The square root of 196123187 is about 14004.3988446488. The cubic root of 196123187 is about 581.0002429190. Note that the first 3 decimals are identical.

The spelling of 196123187 in words is "one hundred ninety-six million, one hundred twenty-three thousand, one hundred eighty-seven".