223427149 has 4 divisors (see below), whose sum is σ = 243738720. Its totient is φ = 203115580.

The previous prime is 223427123. The next prime is 223427153. The reversal of 223427149 is 941724322.

223427149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223427149 - 2⁵ = 223427117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223427189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10155769 + ... + 10155790.

It is an arithmetic number, because the mean of its divisors is an integer number (60934680).

Almost surely, 2^223427149 is an apocalyptic number.

It is an amenable number.

223427149 is a deficient number, since it is larger than the sum of its proper divisors (20311571).

223427149 is a wasteful number, since it uses less digits than its factorization.

223427149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20311570.

The product of its digits is 24192, while the sum is 34.

The square root of 223427149 is about 14947.4796872249. The cubic root of 223427149 is about 606.7996402087.

The spelling of 223427149 in words is "two hundred twenty-three million, four hundred twenty-seven thousand, one hundred forty-nine".