454139 has 4 divisors (see below), whose sum is σ = 519024. Its totient is φ = 389256.

The previous prime is 454109. The next prime is 454141. The reversal of 454139 is 931454.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-454139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32432 + ... + 32445.

It is an arithmetic number, because the mean of its divisors is an integer number (129756).

2⁴⁵⁴¹³⁹ is an apocalyptic number.

454139 is a deficient number, since it is larger than the sum of its proper divisors (64885).

454139 is an equidigital number, since it uses as much as digits as its factorization.

454139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64884.

The product of its digits is 2160, while the sum is 26.

The square root of 454139 is about 673.8983602888. The cubic root of 454139 is about 76.8651713700.

The spelling of 454139 in words is "four hundred fifty-four thousand, one hundred thirty-nine".