194223225 has 48 divisors (see below), whose sum is σ = 386324480. Its totient is φ = 84110400.

The previous prime is 194223209. The next prime is 194223229. The reversal of 194223225 is 522322491.

It is not a de Polignac number, because 194223225 - 2⁴ = 194223209 is a prime.

It is a super-2 number, since 2×194223225² = 75445322258801250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 194223192 and 194223201.

It is not an unprimeable number, because it can be changed into a prime (194223229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 240 + ... + 19710.

Almost surely, 2^194223225 is an apocalyptic number.

194223225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

194223225 is a deficient number, since it is larger than the sum of its proper divisors (192101255).

194223225 is a wasteful number, since it uses less digits than its factorization.

194223225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19510 (or 19505 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 194223225 is about 13936.3992838897. The cubic root of 194223225 is about 579.1179865807.

The spelling of 194223225 in words is "one hundred ninety-four million, two hundred twenty-three thousand, two hundred twenty-five".