5138915 has 4 divisors (see below), whose sum is σ = 6166704. Its totient is φ = 4111128.

The previous prime is 5138891. The next prime is 5138923. The reversal of 5138915 is 5198315.

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 5138915 - 2¹⁶ = 5073379 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513887 + ... + 513896.

It is an arithmetic number, because the mean of its divisors is an integer number (1541676).

Almost surely, 2^5138915 is an apocalyptic number.

5138915 is a deficient number, since it is larger than the sum of its proper divisors (1027789).

5138915 is a wasteful number, since it uses less digits than its factorization.

5138915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027788.

The product of its digits is 5400, while the sum is 32.

The square root of 5138915 is about 2266.9175106298. The cubic root of 5138915 is about 172.5667598490.

The spelling of 5138915 in words is "five million, one hundred thirty-eight thousand, nine hundred fifteen".