1144621 has 2 divisors, whose sum is σ = 1144622. Its totient is φ = 1144620.

The previous prime is 1144607. The next prime is 1144643. The reversal of 1144621 is 1264411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1022121 + 122500 = 1011^2 + 350^2 .

It is an emirp because it is prime and its reverse (1264411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144621 - 2⁵ = 1144589 is a prime.

It is a Chen prime.

1144621 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572310 + 572311.

It is an arithmetic number, because the mean of its divisors is an integer number (572311).

2^1144621 is an apocalyptic number.

It is an amenable number.

1144621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144621 is an equidigital number, since it uses as much as digits as its factorization.

1144621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 19.

The square root of 1144621 is about 1069.8696182246. The cubic root of 1144621 is about 104.6053515049.

The spelling of 1144621 in words is "one million, one hundred forty-four thousand, six hundred twenty-one".