223754985 has 12 divisors (see below), whose sum is σ = 387842052. Its totient is φ = 119335968.

The previous prime is 223754983. The next prime is 223755011. The reversal of 223754985 is 589457322.

223754985 is a `hidden beast` number, since 2 + 23 + 7 + 549 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 128867904 + 94887081 = 11352^2 + 9741^2 .

It is not a de Polignac number, because 223754985 - 2¹ = 223754983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 4972333 = 223754985 / (2 + 2 + 3 + 7 + 5 + 4 + 9 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 223754985.

It is not an unprimeable number, because it can be changed into a prime (223754983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2486122 + ... + 2486211.

It is an arithmetic number, because the mean of its divisors is an integer number (32320171).

Almost surely, 2^223754985 is an apocalyptic number.

It is an amenable number.

223754985 is a deficient number, since it is larger than the sum of its proper divisors (164087067).

223754985 is a wasteful number, since it uses less digits than its factorization.

223754985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4972344 (or 4972341 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 223754985 is about 14958.4419308964. The cubic root of 223754985 is about 607.0962820888.

The spelling of 223754985 in words is "two hundred twenty-three million, seven hundred fifty-four thousand, nine hundred eighty-five".