5181239 has 8 divisors (see below), whose sum is σ = 5943168. Its totient is φ = 4424760.

The previous prime is 5181223. The next prime is 5181251. The reversal of 5181239 is 9321815.

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 5181239 - 2⁴ = 5181223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181269) 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, 944 + ... + 3354.

It is an arithmetic number, because the mean of its divisors is an integer number (742896).

Almost surely, 2^5181239 is an apocalyptic number.

5181239 is a deficient number, since it is larger than the sum of its proper divisors (761929).

5181239 is a wasteful number, since it uses less digits than its factorization.

5181239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725.

The product of its digits is 2160, while the sum is 29.

The square root of 5181239 is about 2276.2335117470. The cubic root of 5181239 is about 173.0392172778.

The spelling of 5181239 in words is "five million, one hundred eighty-one thousand, two hundred thirty-nine".