387133223 has 2 divisors, whose sum is σ = 387133224. Its totient is φ = 387133222.

The previous prime is 387133199. The next prime is 387133237. The reversal of 387133223 is 322331783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 387133223 - 2¹⁰ = 387132199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 387133223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387133273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193566611 + 193566612.

It is an arithmetic number, because the mean of its divisors is an integer number (193566612).

Almost surely, 2^387133223 is an apocalyptic number.

387133223 is a deficient number, since it is larger than the sum of its proper divisors (1).

387133223 is an equidigital number, since it uses as much as digits as its factorization.

387133223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 32.

The square root of 387133223 is about 19675.7013343870. The cubic root of 387133223 is about 728.8197748949.

The spelling of 387133223 in words is "three hundred eighty-seven million, one hundred thirty-three thousand, two hundred twenty-three".