454435139 has 2 divisors, whose sum is σ = 454435140. Its totient is φ = 454435138.

The previous prime is 454435129. The next prime is 454435153. The reversal of 454435139 is 931534454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 454435139 - 2⁴ = 454435123 is a prime.

It is a super-2 number, since 2×454435139² = 413022591115898642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (454435129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227217569 + 227217570.

It is an arithmetic number, because the mean of its divisors is an integer number (227217570).

Almost surely, 2^454435139 is an apocalyptic number.

454435139 is a deficient number, since it is larger than the sum of its proper divisors (1).

454435139 is an equidigital number, since it uses as much as digits as its factorization.

454435139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 38.

The square root of 454435139 is about 21317.4843497069. The cubic root of 454435139 is about 768.8187538129.

The spelling of 454435139 in words is "four hundred fifty-four million, four hundred thirty-five thousand, one hundred thirty-nine".