5199121 has 4 divisors (see below), whose sum is σ = 5204992. Its totient is φ = 5193252.

The previous prime is 5199119. The next prime is 5199137. The reversal of 5199121 is 1219915.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5199121 - 2¹ = 5199119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5199121.

It is not an unprimeable number, because it can be changed into a prime (5199221) 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, 1305 + ... + 3478.

It is an arithmetic number, because the mean of its divisors is an integer number (1301248).

Almost surely, 2^5199121 is an apocalyptic number.

It is an amenable number.

5199121 is a deficient number, since it is larger than the sum of its proper divisors (5871).

5199121 is a wasteful number, since it uses less digits than its factorization.

5199121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870.

The product of its digits is 810, while the sum is 28.

The square root of 5199121 is about 2280.1581085530. The cubic root of 5199121 is about 173.2380586697.

The spelling of 5199121 in words is "five million, one hundred ninety-nine thousand, one hundred twenty-one".