5191894 has 4 divisors (see below), whose sum is σ = 7787844. Its totient is φ = 2595946.

The previous prime is 5191873. The next prime is 5191909. The reversal of 5191894 is 4981915.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1297972 + ... + 1297975.

It is an arithmetic number, because the mean of its divisors is an integer number (1946961).

Almost surely, 2^5191894 is an apocalyptic number.

5191894 is a deficient number, since it is larger than the sum of its proper divisors (2595950).

5191894 is a wasteful number, since it uses less digits than its factorization.

5191894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595949.

The product of its digits is 12960, while the sum is 37.

The square root of 5191894 is about 2278.5727989248. The cubic root of 5191894 is about 173.1577520175.

The spelling of 5191894 in words is "five million, one hundred ninety-one thousand, eight hundred ninety-four".