5420191 has 4 divisors (see below), whose sum is σ = 6194512. Its totient is φ = 4645872.

The previous prime is 5420179. The next prime is 5420213. The reversal of 5420191 is 1910245.

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

It is not a de Polignac number, because 5420191 - 2¹¹ = 5418143 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 (5420101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387150 + ... + 387163.

It is an arithmetic number, because the mean of its divisors is an integer number (1548628).

Almost surely, 2^5420191 is an apocalyptic number.

5420191 is a deficient number, since it is larger than the sum of its proper divisors (774321).

5420191 is an equidigital number, since it uses as much as digits as its factorization.

5420191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774320.

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

The square root of 5420191 is about 2328.1303657656. The cubic root of 5420191 is about 175.6594547042.

The spelling of 5420191 in words is "five million, four hundred twenty thousand, one hundred ninety-one".