223401091 has 2 divisors, whose sum is σ = 223401092. Its totient is φ = 223401090.

The previous prime is 223401089. The next prime is 223401121. The reversal of 223401091 is 190104322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223401091 - 2¹ = 223401089 is a prime.

Together with 223401089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (223404091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111700545 + 111700546.

It is an arithmetic number, because the mean of its divisors is an integer number (111700546).

Almost surely, 2^223401091 is an apocalyptic number.

223401091 is a deficient number, since it is larger than the sum of its proper divisors (1).

223401091 is an equidigital number, since it uses as much as digits as its factorization.

223401091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 223401091 is about 14946.6080098462. The cubic root of 223401091 is about 606.7760492234.

The spelling of 223401091 in words is "two hundred twenty-three million, four hundred one thousand, ninety-one".