456545189 has 2 divisors, whose sum is σ = 456545190. Its totient is φ = 456545188.

The previous prime is 456545179. The next prime is 456545191. The reversal of 456545189 is 981545654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429940225 + 26604964 = 20735^2 + 5158^2 .

It is a cyclic number.

It is not a de Polignac number, because 456545189 - 2²⁴ = 439767973 is a prime.

Together with 456545191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456545179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228272594 + 228272595.

It is an arithmetic number, because the mean of its divisors is an integer number (228272595).

Almost surely, 2^456545189 is an apocalyptic number.

It is an amenable number.

456545189 is a deficient number, since it is larger than the sum of its proper divisors (1).

456545189 is an equidigital number, since it uses as much as digits as its factorization.

456545189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864000, while the sum is 47.

The square root of 456545189 is about 21366.9180978446. The cubic root of 456545189 is about 770.0068526966.

The spelling of 456545189 in words is "four hundred fifty-six million, five hundred forty-five thousand, one hundred eighty-nine".