5138765 has 4 divisors (see below), whose sum is σ = 6166524. Its totient is φ = 4111008.

The previous prime is 5138753. The next prime is 5138789. The reversal of 5138765 is 5678315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5678315 = 5 ⋅1135663.

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 3924361 = 1102^2 + 1981^2 .

It is a cyclic number.

It is not a de Polignac number, because 5138765 - 2¹² = 5134669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513872 + ... + 513881.

It is an arithmetic number, because the mean of its divisors is an integer number (1541631).

Almost surely, 2^5138765 is an apocalyptic number.

It is an amenable number.

5138765 is a deficient number, since it is larger than the sum of its proper divisors (1027759).

5138765 is a wasteful number, since it uses less digits than its factorization.

5138765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027758.

The product of its digits is 25200, while the sum is 35.

The square root of 5138765 is about 2266.8844258144. The cubic root of 5138765 is about 172.5650808132.

The spelling of 5138765 in words is "five million, one hundred thirty-eight thousand, seven hundred sixty-five".