454139459 has 2 divisors, whose sum is σ = 454139460. Its totient is φ = 454139458.

The previous prime is 454139437. The next prime is 454139489. The reversal of 454139459 is 954931454.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454139459 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (454139419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227069729 + 227069730.

It is an arithmetic number, because the mean of its divisors is an integer number (227069730).

Almost surely, 2^454139459 is an apocalyptic number.

454139459 is a deficient number, since it is larger than the sum of its proper divisors (1).

454139459 is an equidigital number, since it uses as much as digits as its factorization.

454139459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The square root of 454139459 is about 21310.5480689728. The cubic root of 454139459 is about 768.6519726593.

It can be divided in two parts, 45413 and 9459, that added together give a cube (54872 = 38³).

The spelling of 454139459 in words is "four hundred fifty-four million, one hundred thirty-nine thousand, four hundred fifty-nine".