1141921 has 4 divisors (see below), whose sum is σ = 1245744. Its totient is φ = 1038100.

The previous prime is 1141909. The next prime is 1141949. The reversal of 1141921 is 1291411.

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 a de Polignac number, because none of the positive numbers 2^k-1141921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141901) 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, 51895 + ... + 51916.

It is an arithmetic number, because the mean of its divisors is an integer number (311436).

2^1141921 is an apocalyptic number.

1141921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1141921 is a deficient number, since it is larger than the sum of its proper divisors (103823).

1141921 is a wasteful number, since it uses less digits than its factorization.

1141921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103822.

The product of its digits is 72, while the sum is 19.

The square root of 1141921 is about 1068.6070372218. The cubic root of 1141921 is about 104.5230369760.

The spelling of 1141921 in words is "one million, one hundred forty-one thousand, nine hundred twenty-one".