3091121 has 8 divisors (see below), whose sum is σ = 3396288. Its totient is φ = 2790000.

The previous prime is 3091117. The next prime is 3091147. The reversal of 3091121 is 1211903.

It is a happy number.

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 3091121 - 2² = 3091117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3091121.

It is not an unprimeable number, because it can be changed into a prime (3091111) 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, 731 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (424536).

Almost surely, 2^3091121 is an apocalyptic number.

It is an amenable number.

3091121 is a deficient number, since it is larger than the sum of its proper divisors (305167).

3091121 is a wasteful number, since it uses less digits than its factorization.

3091121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 3091121 is about 1758.1584115204. The cubic root of 3091121 is about 145.6706311348.

The spelling of 3091121 in words is "three million, ninety-one thousand, one hundred twenty-one".