3189091 has 4 divisors (see below), whose sum is σ = 3256992. Its totient is φ = 3121192.

The previous prime is 3189089. The next prime is 3189119. The reversal of 3189091 is 1909813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1909813 = 113 ⋅16901.

It is a cyclic number.

It is not a de Polignac number, because 3189091 - 2¹ = 3189089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3189061) 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, 33880 + ... + 33973.

It is an arithmetic number, because the mean of its divisors is an integer number (814248).

Almost surely, 2^3189091 is an apocalyptic number.

3189091 is a deficient number, since it is larger than the sum of its proper divisors (67901).

3189091 is an equidigital number, since it uses as much as digits as its factorization.

3189091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67900.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 3189091 is about 1785.8026206723. The cubic root of 3189091 is about 147.1936147149.

It can be divided in two parts, 318 and 9091, that added together give a square (9409 = 97²).

The spelling of 3189091 in words is "three million, one hundred eighty-nine thousand, ninety-one".