223451445 has 32 divisors (see below), whose sum is σ = 416316672. Its totient is φ = 100219392.

The previous prime is 223451411. The next prime is 223451453. The reversal of 223451445 is 544154322.

223451445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223451445 - 2⁹ = 223450933 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14512 + ... + 25641.

It is an arithmetic number, because the mean of its divisors is an integer number (13009896).

Almost surely, 2^223451445 is an apocalyptic number.

It is an amenable number.

223451445 is a deficient number, since it is larger than the sum of its proper divisors (192865227).

223451445 is a wasteful number, since it uses less digits than its factorization.

223451445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40221.

The product of its digits is 19200, while the sum is 30.

The square root of 223451445 is about 14948.2923773921. The cubic root of 223451445 is about 606.8216343572.

The spelling of 223451445 in words is "two hundred twenty-three million, four hundred fifty-one thousand, four hundred forty-five".