223494147 has 12 divisors (see below), whose sum is σ = 334781720. Its totient is φ = 148995936.

The previous prime is 223494143. The next prime is 223494149. The reversal of 223494147 is 741494322.

223494147 is a `hidden beast` number, since 2 + 23 + 494 + 147 = 666.

It is not a de Polignac number, because 223494147 - 2² = 223494143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223494143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459622 + ... + 460107.

Almost surely, 2^223494147 is an apocalyptic number.

223494147 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

223494147 is a deficient number, since it is larger than the sum of its proper divisors (111287573).

223494147 is an frugal number, since it uses more digits than its factorization.

223494147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919744 (or 919732 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 223494147 is about 14949.7206328413. The cubic root of 223494147 is about 606.8602868214.

The spelling of 223494147 in words is "two hundred twenty-three million, four hundred ninety-four thousand, one hundred forty-seven".