457012243 has 4 divisors (see below), whose sum is σ = 458454240. Its totient is φ = 455570248.

The previous prime is 457012229. The next prime is 457012249. The reversal of 457012243 is 342210754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342210754 = 2 ⋅171105377.

It is a cyclic number.

It is not a de Polignac number, because 457012243 - 2⁵ = 457012211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457012249) 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, 720523 + ... + 721156.

It is an arithmetic number, because the mean of its divisors is an integer number (114613560).

Almost surely, 2^457012243 is an apocalyptic number.

457012243 is a deficient number, since it is larger than the sum of its proper divisors (1441997).

457012243 is a wasteful number, since it uses less digits than its factorization.

457012243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441996.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 457012243 is about 21377.8446762063. The cubic root of 457012243 is about 770.2693401942.

Adding to 457012243 its reverse (342210754), we get a palindrome (799222997).

The spelling of 457012243 in words is "four hundred fifty-seven million, twelve thousand, two hundred forty-three".