4201591 has 4 divisors (see below), whose sum is σ = 4209184. Its totient is φ = 4194000.

The previous prime is 4201583. The next prime is 4201621. The reversal of 4201591 is 1951024.

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 4201591 - 2³ = 4201583 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 (4201501) 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, 2895 + ... + 4096.

It is an arithmetic number, because the mean of its divisors is an integer number (1052296).

Almost surely, 2^4201591 is an apocalyptic number.

4201591 is a deficient number, since it is larger than the sum of its proper divisors (7593).

4201591 is an equidigital number, since it uses as much as digits as its factorization.

4201591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7592.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 4201591 is about 2049.7782806928. The cubic root of 4201591 is about 161.3632347684.

The spelling of 4201591 in words is "four million, two hundred one thousand, five hundred ninety-one".