454403189 has 2 divisors, whose sum is σ = 454403190. Its totient is φ = 454403188.

The previous prime is 454403153. The next prime is 454403219. The reversal of 454403189 is 981304454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415752100 + 38651089 = 20390^2 + 6217^2 .

It is a cyclic number.

It is not a de Polignac number, because 454403189 - 2⁸ = 454402933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454403119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227201594 + 227201595.

It is an arithmetic number, because the mean of its divisors is an integer number (227201595).

Almost surely, 2^454403189 is an apocalyptic number.

It is an amenable number.

454403189 is a deficient number, since it is larger than the sum of its proper divisors (1).

454403189 is an equidigital number, since it uses as much as digits as its factorization.

454403189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 454403189 is about 21316.7349516759. The cubic root of 454403189 is about 768.8007355944.

The spelling of 454403189 in words is "four hundred fifty-four million, four hundred three thousand, one hundred eighty-nine".