5191491 has 8 divisors (see below), whose sum is σ = 7223040. Its totient is φ = 3310472.

The previous prime is 5191489. The next prime is 5191513. The reversal of 5191491 is 1941915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5191491 - 2¹ = 5191489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5191411) 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 7 ways as a sum of consecutive naturals, for example, 37551 + ... + 37688.

It is an arithmetic number, because the mean of its divisors is an integer number (902880).

Almost surely, 2^5191491 is an apocalyptic number.

5191491 is a deficient number, since it is larger than the sum of its proper divisors (2031549).

5191491 is a wasteful number, since it uses less digits than its factorization.

5191491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75265.

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

The square root of 5191491 is about 2278.4843646600. The cubic root of 5191491 is about 173.1532716757.

The spelling of 5191491 in words is "five million, one hundred ninety-one thousand, four hundred ninety-one".