457123 has 4 divisors (see below), whose sum is σ = 458920. Its totient is φ = 455328.

The previous prime is 457117. The next prime is 457139. The reversal of 457123 is 321754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321754 = 2 ⋅160877.

It is a cyclic number.

It is not a de Polignac number, because 457123 - 2⁵ = 457091 is a prime.

It is a super-2 number, since 2×457123² = 417922874258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 457094 and 457103.

It is not an unprimeable number, because it can be changed into a prime (457153) 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, 438 + ... + 1051.

It is an arithmetic number, because the mean of its divisors is an integer number (114730).

2⁴⁵⁷¹²³ is an apocalyptic number.

457123 is a deficient number, since it is larger than the sum of its proper divisors (1797).

457123 is a wasteful number, since it uses less digits than its factorization.

457123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796.

The product of its digits is 840, while the sum is 22.

The square root of 457123 is about 676.1087190682. The cubic root of 457123 is about 77.0331560140.

Adding to 457123 its reverse (321754), we get a palindrome (778877).

The spelling of 457123 in words is "four hundred fifty-seven thousand, one hundred twenty-three".