454421139 has 4 divisors (see below), whose sum is σ = 605894856. Its totient is φ = 302947424.

The previous prime is 454421129. The next prime is 454421159. The reversal of 454421139 is 931124454.

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

It is a cyclic number.

It is not a de Polignac number, because 454421139 - 2¹⁵ = 454388371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (454421129) 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, 75736854 + ... + 75736859.

It is an arithmetic number, because the mean of its divisors is an integer number (151473714).

Almost surely, 2^454421139 is an apocalyptic number.

454421139 is a deficient number, since it is larger than the sum of its proper divisors (151473717).

454421139 is a wasteful number, since it uses less digits than its factorization.

454421139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151473716.

The product of its digits is 17280, while the sum is 33.

The square root of 454421139 is about 21317.1559782256. The cubic root of 454421139 is about 768.8108586098.

The spelling of 454421139 in words is "four hundred fifty-four million, four hundred twenty-one thousand, one hundred thirty-nine".