5151709 has 4 divisors (see below), whose sum is σ = 5156316. Its totient is φ = 5147104.

The previous prime is 5151677. The next prime is 5151737. The reversal of 5151709 is 9071515.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3404025 + 1747684 = 1845^2 + 1322^2 .

It is a cyclic number.

It is not a de Polignac number, because 5151709 - 2⁵ = 5151677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5151739) 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, 567 + ... + 3259.

It is an arithmetic number, because the mean of its divisors is an integer number (1289079).

Almost surely, 2^5151709 is an apocalyptic number.

It is an amenable number.

5151709 is a deficient number, since it is larger than the sum of its proper divisors (4607).

5151709 is a wasteful number, since it uses less digits than its factorization.

5151709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 5151709 is about 2269.7376500380. The cubic root of 5151709 is about 172.7098503287.

The spelling of 5151709 in words is "five million, one hundred fifty-one thousand, seven hundred nine".