223815047 has 8 divisors (see below), whose sum is σ = 247284576. Its totient is φ = 201490432.

The previous prime is 223815037. The next prime is 223815077. The reversal of 223815047 is 740518322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223815047 is a prime.

It is a super-2 number, since 2×223815047² = 100186350527224418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223815017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285818 + ... + 286599.

It is an arithmetic number, because the mean of its divisors is an integer number (30910572).

Almost surely, 2^223815047 is an apocalyptic number.

223815047 is a deficient number, since it is larger than the sum of its proper divisors (23469529).

223815047 is a wasteful number, since it uses less digits than its factorization.

223815047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572457.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 223815047 is about 14960.4494250674. The cubic root of 223815047 is about 607.1505976828.

The spelling of 223815047 in words is "two hundred twenty-three million, eight hundred fifteen thousand, forty-seven".