194193225 has 18 divisors (see below), whose sum is σ = 347822046. Its totient is φ = 103569600.

The previous prime is 194193211. The next prime is 194193247. The reversal of 194193225 is 522391491.

194193225 is a `hidden beast` number, since 19 + 419 + 3 + 225 = 666.

194193225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 40755456 + 153437769 = 6384^2 + 12387^2 .

It is not a de Polignac number, because 194193225 - 2⁸ = 194192969 is a prime.

It is a super-2 number, since 2×194193225² = 75422017271801250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 194193225.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 431316 + ... + 431765.

It is an arithmetic number, because the mean of its divisors is an integer number (19323447).

Almost surely, 2^194193225 is an apocalyptic number.

194193225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

194193225 is a deficient number, since it is larger than the sum of its proper divisors (153628821).

194193225 is a wasteful number, since it uses less digits than its factorization.

194193225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863097 (or 863089 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 194193225 is about 13935.3229241378. The cubic root of 194193225 is about 579.0881679116.

The spelling of 194193225 in words is "one hundred ninety-four million, one hundred ninety-three thousand, two hundred twenty-five".