454547139 has 8 divisors (see below), whose sum is σ = 641713680. Its totient is φ = 285206016.

The previous prime is 454547123. The next prime is 454547201. The reversal of 454547139 is 931745454.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 454547139 - 2⁴ = 454547123 is a prime.

It is a super-2 number, since 2×454547139² = 413226203146170642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 454547139.

It is not an unprimeable number, because it can be changed into a prime (454547939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4456294 + ... + 4456395.

It is an arithmetic number, because the mean of its divisors is an integer number (80214210).

Almost surely, 2^454547139 is an apocalyptic number.

454547139 is a deficient number, since it is larger than the sum of its proper divisors (187166541).

454547139 is a wasteful number, since it uses less digits than its factorization.

454547139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8912709.

The product of its digits is 302400, while the sum is 42.

The square root of 454547139 is about 21320.1111394852. Note that the first 4 decimals coincide. The cubic root of 454547139 is about 768.8819096005.

The spelling of 454547139 in words is "four hundred fifty-four million, five hundred forty-seven thousand, one hundred thirty-nine".