1144651 has 4 divisors (see below), whose sum is σ = 1153792. Its totient is φ = 1135512.

The previous prime is 1144643. The next prime is 1144657. The reversal of 1144651 is 1564411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1144651 - 2³ = 1144643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144657) 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, 4380 + ... + 4633.

It is an arithmetic number, because the mean of its divisors is an integer number (288448).

2^1144651 is an apocalyptic number.

1144651 is a deficient number, since it is larger than the sum of its proper divisors (9141).

1144651 is an equidigital number, since it uses as much as digits as its factorization.

1144651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9140.

The product of its digits is 480, while the sum is 22.

The square root of 1144651 is about 1069.8836385327. The cubic root of 1144651 is about 104.6062653832.

The spelling of 1144651 in words is "one million, one hundred forty-four thousand, six hundred fifty-one".