223085971 has 2 divisors, whose sum is σ = 223085972. Its totient is φ = 223085970.

The previous prime is 223085911. The next prime is 223085977. The reversal of 223085971 is 179580322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223085971 - 2⁹ = 223085459 is a prime.

It is a super-3 number, since 3×223085971³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223085971.

It is not a weakly prime, because it can be changed into another prime (223085977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111542985 + 111542986.

It is an arithmetic number, because the mean of its divisors is an integer number (111542986).

Almost surely, 2^223085971 is an apocalyptic number.

223085971 is a deficient number, since it is larger than the sum of its proper divisors (1).

223085971 is an equidigital number, since it uses as much as digits as its factorization.

223085971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 223085971 is about 14936.0627676774. The cubic root of 223085971 is about 606.4906175494.

The spelling of 223085971 in words is "two hundred twenty-three million, eighty-five thousand, nine hundred seventy-one".