5178121 has 8 divisors (see below), whose sum is σ = 5644800. Its totient is φ = 4721232.

The previous prime is 5178091. The next prime is 5178133. The reversal of 5178121 is 1218715.

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

It is a cyclic number.

It is not a de Polignac number, because 5178121 - 2²¹ = 3080969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5178161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321 + ... + 3478.

It is an arithmetic number, because the mean of its divisors is an integer number (705600).

Almost surely, 2^5178121 is an apocalyptic number.

It is an amenable number.

5178121 is a deficient number, since it is larger than the sum of its proper divisors (466679).

5178121 is a wasteful number, since it uses less digits than its factorization.

5178121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4895.

The product of its digits is 560, while the sum is 25.

The square root of 5178121 is about 2275.5485053059. The cubic root of 5178121 is about 173.0044994208.

The spelling of 5178121 in words is "five million, one hundred seventy-eight thousand, one hundred twenty-one".