5191389 has 24 divisors (see below), whose sum is σ = 9023040. Its totient is φ = 2809728.

The previous prime is 5191369. The next prime is 5191391. The reversal of 5191389 is 9831915.

It is a happy number.

5191389 is a `hidden beast` number, since 519 + 138 + 9 = 666.

It is not a de Polignac number, because 5191389 - 2⁹ = 5190877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5191339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 972 + ... + 3365.

It is an arithmetic number, because the mean of its divisors is an integer number (375960).

Almost surely, 2^5191389 is an apocalyptic number.

It is an amenable number.

5191389 is a deficient number, since it is larger than the sum of its proper divisors (3831651).

5191389 is a wasteful number, since it uses less digits than its factorization.

5191389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4369 (or 4366 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 5191389 is about 2278.4619812496. The cubic root of 5191389 is about 173.1521376566.

The spelling of 5191389 in words is "five million, one hundred ninety-one thousand, three hundred eighty-nine".