200197231 has 16 divisors (see below), whose sum is σ = 218312640. Its totient is φ = 183574560.

The previous prime is 200197199. The next prime is 200197247. The reversal of 200197231 is 132791002.

It is not a de Polignac number, because 200197231 - 2⁵ = 200197199 is a prime.

It is a super-2 number, since 2×200197231² = 80157862600134722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200197196 and 200197205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200197531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643566 + ... + 643876.

It is an arithmetic number, because the mean of its divisors is an integer number (13644540).

Almost surely, 2^200197231 is an apocalyptic number.

200197231 is a deficient number, since it is larger than the sum of its proper divisors (18115409).

200197231 is an equidigital number, since it uses as much as digits as its factorization.

200197231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 200197231 is about 14149.1070742998. The cubic root of 200197231 is about 584.9957201333.

The spelling of 200197231 in words is "two hundred million, one hundred ninety-seven thousand, two hundred thirty-one".