6291121 has 4 divisors (see below), whose sum is σ = 6564672. Its totient is φ = 6017572.

The previous prime is 6291119. The next prime is 6291133. The reversal of 6291121 is 1211926.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6291121 - 2¹ = 6291119 is a prime.

It is a Duffinian number.

6291121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6291092 and 6291101.

It is not an unprimeable number, because it can be changed into a prime (6291161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136741 + ... + 136786.

It is an arithmetic number, because the mean of its divisors is an integer number (1641168).

Almost surely, 2^6291121 is an apocalyptic number.

It is an amenable number.

6291121 is a deficient number, since it is larger than the sum of its proper divisors (273551).

6291121 is a wasteful number, since it uses less digits than its factorization.

6291121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273550.

The product of its digits is 216, while the sum is 22.

The square root of 6291121 is about 2508.2107168258. The cubic root of 6291121 is about 184.6046683461.

The spelling of 6291121 in words is "six million, two hundred ninety-one thousand, one hundred twenty-one".