5278121 has 8 divisors (see below), whose sum is σ = 5447904. Its totient is φ = 5110560.

The previous prime is 5278099. The next prime is 5278127. The reversal of 5278121 is 1218725.

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 5278121 - 2¹⁸ = 5015977 is a prime.

It is a super-2 number, since 2×5278121² = 55717122581282, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5278127) 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, 5165 + ... + 6101.

It is an arithmetic number, because the mean of its divisors is an integer number (680988).

Almost surely, 2^5278121 is an apocalyptic number.

It is an amenable number.

5278121 is a deficient number, since it is larger than the sum of its proper divisors (169783).

5278121 is a wasteful number, since it uses less digits than its factorization.

5278121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111.

The product of its digits is 1120, while the sum is 26.

The square root of 5278121 is about 2297.4161573385. The cubic root of 5278121 is about 174.1110952132. Note that the first 3 decimals are identical.

The spelling of 5278121 in words is "five million, two hundred seventy-eight thousand, one hundred twenty-one".