5278145 has 16 divisors (see below), whose sum is σ = 6642000. Its totient is φ = 4021248.

The previous prime is 5278139. The next prime is 5278151. The reversal of 5278145 is 5418725.

5278145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (5278139) and next prime (5278151).

It can be written as a sum of positive squares in 8 ways, for example, as 1936 + 5276209 = 44^2 + 2297^2 .

It is a cyclic number.

It is not a de Polignac number, because 5278145 - 2¹⁴ = 5261761 is a prime.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12701 + ... + 13109.

It is an arithmetic number, because the mean of its divisors is an integer number (415125).

Almost surely, 2^5278145 is an apocalyptic number.

It is an amenable number.

5278145 is a deficient number, since it is larger than the sum of its proper divisors (1363855).

5278145 is a wasteful number, since it uses less digits than its factorization.

5278145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532.

The product of its digits is 11200, while the sum is 32.

The square root of 5278145 is about 2297.4213805917. The cubic root of 5278145 is about 174.1113591114. Note that the first 3 decimals are identical.

The spelling of 5278145 in words is "five million, two hundred seventy-eight thousand, one hundred forty-five".