223475491 has 2 divisors, whose sum is σ = 223475492. Its totient is φ = 223475490.

The previous prime is 223475453. The next prime is 223475501. The reversal of 223475491 is 194574322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223475491 - 2¹¹ = 223473443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223475491.

It is not a weakly prime, because it can be changed into another prime (223473491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111737745 + 111737746.

It is an arithmetic number, because the mean of its divisors is an integer number (111737746).

Almost surely, 2^223475491 is an apocalyptic number.

223475491 is a deficient number, since it is larger than the sum of its proper divisors (1).

223475491 is an equidigital number, since it uses as much as digits as its factorization.

223475491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 223475491 is about 14949.0966616716. The cubic root of 223475491 is about 606.8434006215.

The spelling of 223475491 in words is "two hundred twenty-three million, four hundred seventy-five thousand, four hundred ninety-one".