5171491 has 4 divisors (see below), whose sum is σ = 5569312. Its totient is φ = 4773672.

The previous prime is 5171473. The next prime is 5171521. The reversal of 5171491 is 1941715.

5171491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5171491 - 2⁵ = 5171459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5171461) 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, 198891 + ... + 198916.

It is an arithmetic number, because the mean of its divisors is an integer number (1392328).

Almost surely, 2^5171491 is an apocalyptic number.

5171491 is a deficient number, since it is larger than the sum of its proper divisors (397821).

5171491 is a wasteful number, since it uses less digits than its factorization.

5171491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397820.

The product of its digits is 1260, while the sum is 28.

The square root of 5171491 is about 2274.0912470699. The cubic root of 5171491 is about 172.9306303009.

The spelling of 5171491 in words is "five million, one hundred seventy-one thousand, four hundred ninety-one".