5123857 has 4 divisors (see below), whose sum is σ = 5196096. Its totient is φ = 5051620.

The previous prime is 5123849. The next prime is 5123869. The reversal of 5123857 is 7583215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5123857 - 2³ = 5123849 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

5123857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5123887) 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 3 ways as a sum of consecutive naturals, for example, 36013 + ... + 36154.

It is an arithmetic number, because the mean of its divisors is an integer number (1299024).

Almost surely, 2^5123857 is an apocalyptic number.

It is an amenable number.

5123857 is a deficient number, since it is larger than the sum of its proper divisors (72239).

5123857 is an equidigital number, since it uses as much as digits as its factorization.

5123857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72238.

The product of its digits is 8400, while the sum is 31.

The square root of 5123857 is about 2263.5938239887. The cubic root of 5123857 is about 172.3980437904.

The spelling of 5123857 in words is "five million, one hundred twenty-three thousand, eight hundred fifty-seven".