223538147 has 6 divisors (see below), whose sum is σ = 260034228. Its totient is φ = 191604084.

The previous prime is 223538143. The next prime is 223538167. The reversal of 223538147 is 741835322.

It is not a de Polignac number, because 223538147 - 2² = 223538143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223538141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2280953 + ... + 2281050.

It is an arithmetic number, because the mean of its divisors is an integer number (43339038).

Almost surely, 2^223538147 is an apocalyptic number.

223538147 is a deficient number, since it is larger than the sum of its proper divisors (36496081).

223538147 is an equidigital number, since it uses as much as digits as its factorization.

223538147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4562017 (or 4562010 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 223538147 is about 14951.1921598246. The cubic root of 223538147 is about 606.9001090433.

The spelling of 223538147 in words is "two hundred twenty-three million, five hundred thirty-eight thousand, one hundred forty-seven".