3189531 has 4 divisors (see below), whose sum is σ = 4252712. Its totient is φ = 2126352.

The previous prime is 3189517. The next prime is 3189539. The reversal of 3189531 is 1359813.

It is a happy number.

3189531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3189531 - 2⁵ = 3189499 is a prime.

It is a super-2 number, since 2×3189531² = 20346215999922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3189539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531586 + ... + 531591.

It is an arithmetic number, because the mean of its divisors is an integer number (1063178).

Almost surely, 2^3189531 is an apocalyptic number.

3189531 is a deficient number, since it is larger than the sum of its proper divisors (1063181).

3189531 is a wasteful number, since it uses less digits than its factorization.

3189531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063180.

The product of its digits is 3240, while the sum is 30.

The square root of 3189531 is about 1785.9258103292. The cubic root of 3189531 is about 147.2003838551.

The spelling of 3189531 in words is "three million, one hundred eighty-nine thousand, five hundred thirty-one".