457142 has 8 divisors (see below), whose sum is σ = 783696. Its totient is φ = 195912.

The previous prime is 457139. The next prime is 457151. The reversal of 457142 is 241754.

Added to its reverse (241754) it gives a square (698896 = 836²).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16313 + ... + 16340.

It is an arithmetic number, because the mean of its divisors is an integer number (97962).

2⁴⁵⁷¹⁴² is an apocalyptic number.

457142 is a deficient number, since it is larger than the sum of its proper divisors (326554).

457142 is a wasteful number, since it uses less digits than its factorization.

457142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32662.

The product of its digits is 1120, while the sum is 23.

The square root of 457142 is about 676.1227699168. The cubic root of 457142 is about 77.0342232757.

Adding to 457142 its reverse (241754), we get a palindrome (698896).

The spelling of 457142 in words is "four hundred fifty-seven thousand, one hundred forty-two".