200930191 has 16 divisors (see below), whose sum is σ = 265248000. Its totient is φ = 147358080.

The previous prime is 200930179. The next prime is 200930203. The reversal of 200930191 is 191039002.

It is an interprime number because it is at equal distance from previous prime (200930179) and next prime (200930203).

It is a cyclic number.

It is not a de Polignac number, because 200930191 - 2⁷ = 200930063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200930131) 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, 75441 + ... + 78058.

It is an arithmetic number, because the mean of its divisors is an integer number (16578000).

Almost surely, 2^200930191 is an apocalyptic number.

200930191 is a deficient number, since it is larger than the sum of its proper divisors (64317809).

200930191 is a wasteful number, since it uses less digits than its factorization.

200930191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153534.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 200930191 is about 14174.9846913498. The cubic root of 200930191 is about 585.7087773568.

Adding to 200930191 its reverse (191039002), we get a palindrome (391969193).

The spelling of 200930191 in words is "two hundred million, nine hundred thirty thousand, one hundred ninety-one".