5120191 has 6 divisors (see below), whose sum is σ = 5353040. Its totient is φ = 4897068.

The previous prime is 5120189. The next prime is 5120201. The reversal of 5120191 is 1910215.

It is not a de Polignac number, because 5120191 - 2¹ = 5120189 is a prime.

It is a Duffinian number.

5120191 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4311 + ... + 5368.

Almost surely, 2^5120191 is an apocalyptic number.

5120191 is a deficient number, since it is larger than the sum of its proper divisors (232849).

5120191 is an equidigital number, since it uses as much as digits as its factorization.

5120191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9725 (or 9702 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 5120191 is about 2262.7839048393. The cubic root of 5120191 is about 172.3569183896.

The spelling of 5120191 in words is "five million, one hundred twenty thousand, one hundred ninety-one".