223157873 has 2 divisors, whose sum is σ = 223157874. Its totient is φ = 223157872.

The previous prime is 223157849. The next prime is 223157887. The reversal of 223157873 is 378751322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220017889 + 3139984 = 14833^2 + 1772^2 .

It is a cyclic number.

It is not a de Polignac number, because 223157873 - 2⁸ = 223157617 is a prime.

It is a super-3 number, since 3×223157873³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (223157173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111578936 + 111578937.

It is an arithmetic number, because the mean of its divisors is an integer number (111578937).

Almost surely, 2^223157873 is an apocalyptic number.

It is an amenable number.

223157873 is a deficient number, since it is larger than the sum of its proper divisors (1).

223157873 is an equidigital number, since it uses as much as digits as its factorization.

223157873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 38.

The square root of 223157873 is about 14938.4695668599. The cubic root of 223157873 is about 606.5557691201. Note that the first 3 decimals are identical.

The spelling of 223157873 in words is "two hundred twenty-three million, one hundred fifty-seven thousand, eight hundred seventy-three".