200431297 has 8 divisors (see below), whose sum is σ = 220460832. Its totient is φ = 182209060.

The previous prime is 200431289. The next prime is 200431313. The reversal of 200431297 is 792134002.

It is not a de Polignac number, because 200431297 - 2³ = 200431289 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200431277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73963 + ... + 76624.

It is an arithmetic number, because the mean of its divisors is an integer number (27557604).

Almost surely, 2^200431297 is an apocalyptic number.

It is an amenable number.

200431297 is a deficient number, since it is larger than the sum of its proper divisors (20029535).

200431297 is an equidigital number, since it uses as much as digits as its factorization.

200431297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150620 (or 150598 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 200431297 is about 14157.3760633812. The cubic root of 200431297 is about 585.2236191873.

Adding to 200431297 its reverse (792134002), we get a palindrome (992565299).

The spelling of 200431297 in words is "two hundred million, four hundred thirty-one thousand, two hundred ninety-seven".