6201191 has 4 divisors (see below), whose sum is σ = 6470832. Its totient is φ = 5931552.

The previous prime is 6201187. The next prime is 6201193. The reversal of 6201191 is 1911026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6201191 - 2² = 6201187 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 (6201193) 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, 134786 + ... + 134831.

It is an arithmetic number, because the mean of its divisors is an integer number (1617708).

Almost surely, 2^6201191 is an apocalyptic number.

6201191 is a deficient number, since it is larger than the sum of its proper divisors (269641).

6201191 is a wasteful number, since it uses less digits than its factorization.

6201191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269640.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 6201191 is about 2490.2190666686. The cubic root of 6201191 is about 183.7208175539.

The spelling of 6201191 in words is "six million, two hundred one thousand, one hundred ninety-one".