5149191 has 4 divisors (see below), whose sum is σ = 6865592. Its totient is φ = 3432792.

The previous prime is 5149189. The next prime is 5149219. The reversal of 5149191 is 1919415.

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

It is not a de Polignac number, because 5149191 - 2¹ = 5149189 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5149891) 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, 858196 + ... + 858201.

It is an arithmetic number, because the mean of its divisors is an integer number (1716398).

Almost surely, 2^5149191 is an apocalyptic number.

5149191 is a deficient number, since it is larger than the sum of its proper divisors (1716401).

5149191 is a wasteful number, since it uses less digits than its factorization.

5149191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716400.

The product of its digits is 1620, while the sum is 30.

The square root of 5149191 is about 2269.1828925849. The cubic root of 5149191 is about 172.6817072875.

The spelling of 5149191 in words is "five million, one hundred forty-nine thousand, one hundred ninety-one".