5138309 has 4 divisors (see below), whose sum is σ = 5605440. Its totient is φ = 4671180.

The previous prime is 5138291. The next prime is 5138311. The reversal of 5138309 is 9038315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5138309 - 2⁸ = 5138053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5138359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233549 + ... + 233570.

It is an arithmetic number, because the mean of its divisors is an integer number (1401360).

Almost surely, 2^5138309 is an apocalyptic number.

It is an amenable number.

5138309 is a deficient number, since it is larger than the sum of its proper divisors (467131).

5138309 is a wasteful number, since it uses less digits than its factorization.

5138309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467130.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 5138309 is about 2266.7838450104. The cubic root of 5138309 is about 172.5599763439.

The spelling of 5138309 in words is "five million, one hundred thirty-eight thousand, three hundred nine".