454464139 has 2 divisors, whose sum is σ = 454464140. Its totient is φ = 454464138.

The previous prime is 454464121. The next prime is 454464163. The reversal of 454464139 is 931464454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 454464139 - 2¹⁵ = 454431371 is a prime.

It is a super-2 number, since 2×454464139² = 413075307274022642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (454464739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227232069 + 227232070.

It is an arithmetic number, because the mean of its divisors is an integer number (227232070).

Almost surely, 2^454464139 is an apocalyptic number.

454464139 is a deficient number, since it is larger than the sum of its proper divisors (1).

454464139 is an equidigital number, since it uses as much as digits as its factorization.

454464139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 40.

The square root of 454464139 is about 21318.1645316852. The cubic root of 454464139 is about 768.8351076462.

The spelling of 454464139 in words is "four hundred fifty-four million, four hundred sixty-four thousand, one hundred thirty-nine".