200457 has 6 divisors (see below), whose sum is σ = 289562. Its totient is φ = 133632.

The previous prime is 200443. The next prime is 200461. The reversal of 200457 is 754002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 104976 + 95481 = 324^2 + 309^2 .

It is not a de Polignac number, because 200457 - 2⁷ = 200329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11128 + ... + 11145.

2²⁰⁰⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

200457 is a deficient number, since it is larger than the sum of its proper divisors (89105).

200457 is a wasteful number, since it uses less digits than its factorization.

200457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22279 (or 22276 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 200457 is about 447.7242454905. The cubic root of 200457 is about 58.5248634176.

Adding to 200457 its reverse (754002), we get a palindrome (954459).

The spelling of 200457 in words is "two hundred thousand, four hundred fifty-seven".