354645223 has 2 divisors, whose sum is σ = 354645224. Its totient is φ = 354645222.

The previous prime is 354645199. The next prime is 354645227. The reversal of 354645223 is 322546453.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 354645223 - 2¹⁷ = 354514151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354645227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177322611 + 177322612.

It is an arithmetic number, because the mean of its divisors is an integer number (177322612).

Almost surely, 2^354645223 is an apocalyptic number.

354645223 is a deficient number, since it is larger than the sum of its proper divisors (1).

354645223 is an equidigital number, since it uses as much as digits as its factorization.

354645223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 34.

The square root of 354645223 is about 18832.0265239830. The cubic root of 354645223 is about 707.8339214600.

The spelling of 354645223 in words is "three hundred fifty-four million, six hundred forty-five thousand, two hundred twenty-three".