5091309 has 16 divisors (see below), whose sum is σ = 7621440. Its totient is φ = 3358800.

The previous prime is 5091301. The next prime is 5091323. The reversal of 5091309 is 9031905.

It is not a de Polignac number, because 5091309 - 2³ = 5091301 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5091301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1794 + ... + 3660.

It is an arithmetic number, because the mean of its divisors is an integer number (476340).

Almost surely, 2^5091309 is an apocalyptic number.

It is an amenable number.

5091309 is a deficient number, since it is larger than the sum of its proper divisors (2530131).

5091309 is a wasteful number, since it uses less digits than its factorization.

5091309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977 (or 1971 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 5091309 is about 2256.3929179112. The cubic root of 5091309 is about 172.0322298536.

The spelling of 5091309 in words is "five million, ninety-one thousand, three hundred nine".