5138231 has 8 divisors (see below), whose sum is σ = 5896704. Its totient is φ = 4385880.

The previous prime is 5138207. The next prime is 5138257. The reversal of 5138231 is 1328315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5138231 - 2⁶ = 5138167 is a prime.

It is a super-2 number, since 2×5138231² = 52802835618722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5138197 and 5138206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5138291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446 + ... + 3236.

It is an arithmetic number, because the mean of its divisors is an integer number (737088).

Almost surely, 2^5138231 is an apocalyptic number.

5138231 is a deficient number, since it is larger than the sum of its proper divisors (758473).

5138231 is a wasteful number, since it uses less digits than its factorization.

5138231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061.

The product of its digits is 720, while the sum is 23.

The square root of 5138231 is about 2266.7666399522. The cubic root of 5138231 is about 172.5591031808.

The spelling of 5138231 in words is "five million, one hundred thirty-eight thousand, two hundred thirty-one".