5259145 has 4 divisors (see below), whose sum is σ = 6310980. Its totient is φ = 4207312.

The previous prime is 5259127. The next prime is 5259151. The reversal of 5259145 is 5419525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1814409 + 3444736 = 1347^2 + 1856^2 .

It is a cyclic number.

It is not a de Polignac number, because 5259145 - 2⁹ = 5258633 is a prime.

It is a super-2 number, since 2×5259145² = 55317212262050, which contains 22 as substring.

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 d-powerful number, because it can be written as 5 + 2²² + 5⁴ + 9 + 1 + 4¹⁰ + 5⁶ .

It is an unprimeable number.

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, 525910 + ... + 525919.

It is an arithmetic number, because the mean of its divisors is an integer number (1577745).

Almost surely, 2^5259145 is an apocalyptic number.

It is an amenable number.

5259145 is a deficient number, since it is larger than the sum of its proper divisors (1051835).

5259145 is a wasteful number, since it uses less digits than its factorization.

5259145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051834.

The product of its digits is 9000, while the sum is 31.

The square root of 5259145 is about 2293.2825818028. The cubic root of 5259145 is about 173.9021888289.

The spelling of 5259145 in words is "five million, two hundred fifty-nine thousand, one hundred forty-five".