457147 has 4 divisors (see below), whose sum is σ = 484056. Its totient is φ = 430240.

The previous prime is 457139. The next prime is 457151. The reversal of 457147 is 741754.

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 457147 - 2³ = 457139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457117) 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, 13429 + ... + 13462.

It is an arithmetic number, because the mean of its divisors is an integer number (121014).

2⁴⁵⁷¹⁴⁷ is an apocalyptic number.

457147 is a deficient number, since it is larger than the sum of its proper divisors (26909).

457147 is a wasteful number, since it uses less digits than its factorization.

457147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26908.

The product of its digits is 3920, while the sum is 28.

The square root of 457147 is about 676.1264674600. The cubic root of 457147 is about 77.0345041292.

The spelling of 457147 in words is "four hundred fifty-seven thousand, one hundred forty-seven".