5138515 has 4 divisors (see below), whose sum is σ = 6166224. Its totient is φ = 4110808.

The previous prime is 5138513. The next prime is 5138519. The reversal of 5138515 is 5158315.

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

It is a cyclic number.

It is not a de Polignac number, because 5138515 - 2¹ = 5138513 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5138513) 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, 513847 + ... + 513856.

It is an arithmetic number, because the mean of its divisors is an integer number (1541556).

Almost surely, 2^5138515 is an apocalyptic number.

5138515 is a deficient number, since it is larger than the sum of its proper divisors (1027709).

5138515 is a wasteful number, since it uses less digits than its factorization.

5138515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027708.

The product of its digits is 3000, while the sum is 28.

The square root of 5138515 is about 2266.8292833824. The cubic root of 5138515 is about 172.5622823477.

The spelling of 5138515 in words is "five million, one hundred thirty-eight thousand, five hundred fifteen".