5109531 has 8 divisors (see below), whose sum is σ = 7785984. Its totient is φ = 2919720.

The previous prime is 5109529. The next prime is 5109541. The reversal of 5109531 is 1359015.

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

It is not a de Polignac number, because 5109531 - 2¹ = 5109529 is a prime.

It is a super-2 number, since 2×5109531² = 52214614079922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5109541) 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, 121635 + ... + 121676.

It is an arithmetic number, because the mean of its divisors is an integer number (973248).

Almost surely, 2^5109531 is an apocalyptic number.

5109531 is a deficient number, since it is larger than the sum of its proper divisors (2676453).

5109531 is a wasteful number, since it uses less digits than its factorization.

5109531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243321.

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 5109531 is about 2260.4271720186. The cubic root of 5109531 is about 172.2372222492.

The spelling of 5109531 in words is "five million, one hundred nine thousand, five hundred thirty-one".