1144921 has 4 divisors (see below), whose sum is σ = 1205200. Its totient is φ = 1084644.

The previous prime is 1144919. The next prime is 1144931. The reversal of 1144921 is 1294411.

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 1144921 - 2¹ = 1144919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144892 and 1144901.

It is not an unprimeable number, because it can be changed into a prime (1144901) 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, 30111 + ... + 30148.

It is an arithmetic number, because the mean of its divisors is an integer number (301300).

2^1144921 is an apocalyptic number.

It is an amenable number.

1144921 is a deficient number, since it is larger than the sum of its proper divisors (60279).

1144921 is an equidigital number, since it uses as much as digits as its factorization.

1144921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60278.

The product of its digits is 288, while the sum is 22.

The square root of 1144921 is about 1070.0098130391. The cubic root of 1144921 is about 104.6144895701.

The spelling of 1144921 in words is "one million, one hundred forty-four thousand, nine hundred twenty-one".