223157887 has 2 divisors, whose sum is σ = 223157888. Its totient is φ = 223157886.

The previous prime is 223157873. The next prime is 223157897. The reversal of 223157887 is 788751322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223157887 is a prime.

It is a super-3 number, since 3×223157887³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223157807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111578943 + 111578944.

It is an arithmetic number, because the mean of its divisors is an integer number (111578944).

Almost surely, 2^223157887 is an apocalyptic number.

223157887 is a deficient number, since it is larger than the sum of its proper divisors (1).

223157887 is an equidigital number, since it uses as much as digits as its factorization.

223157887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 43.

The square root of 223157887 is about 14938.4700354487. The cubic root of 223157887 is about 606.5557818043. Note that the first 3 decimals are identical.

The spelling of 223157887 in words is "two hundred twenty-three million, one hundred fifty-seven thousand, eight hundred eighty-seven".