223112491 has 8 divisors (see below), whose sum is σ = 255188480. Its totient is φ = 191087208.

The previous prime is 223112467. The next prime is 223112503. The reversal of 223112491 is 194211322.

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-223112491 is a prime.

It is a super-3 number, since 3×223112491³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223112401) 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, 2721 + ... + 21298.

It is an arithmetic number, because the mean of its divisors is an integer number (31898560).

Almost surely, 2^223112491 is an apocalyptic number.

223112491 is a deficient number, since it is larger than the sum of its proper divisors (32075989).

223112491 is a wasteful number, since it uses less digits than its factorization.

223112491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25353.

The product of its digits is 864, while the sum is 25.

The square root of 223112491 is about 14936.9505254587. The cubic root of 223112491 is about 606.5146493817.

The spelling of 223112491 in words is "two hundred twenty-three million, one hundred twelve thousand, four hundred ninety-one".