5123409 has 8 divisors (see below), whose sum is σ = 7233120. Its totient is φ = 3214656.

The previous prime is 5123399. The next prime is 5123429. The reversal of 5123409 is 9043215.

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

It is not a de Polignac number, because 5123409 - 2⁷ = 5123281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5123429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50179 + ... + 50280.

It is an arithmetic number, because the mean of its divisors is an integer number (904140).

Almost surely, 2^5123409 is an apocalyptic number.

It is an amenable number.

5123409 is a deficient number, since it is larger than the sum of its proper divisors (2109711).

5123409 is a wasteful number, since it uses less digits than its factorization.

5123409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100479.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 5123409 is about 2263.4948641426. The cubic root of 5123409 is about 172.3930191527.

The spelling of 5123409 in words is "five million, one hundred twenty-three thousand, four hundred nine".