223648915 has 16 divisors (see below), whose sum is σ = 308931840. Its totient is φ = 152252640.

The previous prime is 223648913. The next prime is 223648927. The reversal of 223648915 is 519846322.

223648915 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 223648915 - 2¹ = 223648913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223648913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18121 + ... + 27850.

It is an arithmetic number, because the mean of its divisors is an integer number (19308240).

Almost surely, 2^223648915 is an apocalyptic number.

223648915 is a deficient number, since it is larger than the sum of its proper divisors (85282925).

223648915 is a wasteful number, since it uses less digits than its factorization.

223648915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46122.

The product of its digits is 103680, while the sum is 40.

The square root of 223648915 is about 14954.8960210361. The cubic root of 223648915 is about 607.0003365457. Note that the first 3 decimals are identical.

The spelling of 223648915 in words is "two hundred twenty-three million, six hundred forty-eight thousand, nine hundred fifteen".