381858223 has 2 divisors, whose sum is σ = 381858224. Its totient is φ = 381858222.

The previous prime is 381858193. The next prime is 381858227. The reversal of 381858223 is 322858183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381858223 - 2⁹ = 381857711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381858227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190929111 + 190929112.

It is an arithmetic number, because the mean of its divisors is an integer number (190929112).

Almost surely, 2^381858223 is an apocalyptic number.

381858223 is a deficient number, since it is larger than the sum of its proper divisors (1).

381858223 is an equidigital number, since it uses as much as digits as its factorization.

381858223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 40.

The square root of 381858223 is about 19541.1929779121. The cubic root of 381858223 is about 725.4943741872.

Subtracting from 381858223 its sum of digits (40), we obtain a palindrome (381858183).

The spelling of 381858223 in words is "three hundred eighty-one million, eight hundred fifty-eight thousand, two hundred twenty-three".