454946189 has 2 divisors, whose sum is σ = 454946190. Its totient is φ = 454946188.

The previous prime is 454946161. The next prime is 454946213. The reversal of 454946189 is 981649454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382984900 + 71961289 = 19570^2 + 8483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454946189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454046189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227473094 + 227473095.

It is an arithmetic number, because the mean of its divisors is an integer number (227473095).

Almost surely, 2^454946189 is an apocalyptic number.

It is an amenable number.

454946189 is a deficient number, since it is larger than the sum of its proper divisors (1).

454946189 is an equidigital number, since it uses as much as digits as its factorization.

454946189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 50.

The square root of 454946189 is about 21329.4676211105. The cubic root of 454946189 is about 769.1068459942.

The spelling of 454946189 in words is "four hundred fifty-four million, nine hundred forty-six thousand, one hundred eighty-nine".