1148621 has 2 divisors, whose sum is σ = 1148622. Its totient is φ = 1148620.

The previous prime is 1148599. The next prime is 1148629. The reversal of 1148621 is 1268411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 3721 = 1070^2 + 61^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148621 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148629) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574310 + 574311.

It is an arithmetic number, because the mean of its divisors is an integer number (574311).

2^1148621 is an apocalyptic number.

It is an amenable number.

1148621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148621 is an equidigital number, since it uses as much as digits as its factorization.

1148621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 23.

The square root of 1148621 is about 1071.7373745466. The cubic root of 1148621 is about 104.7270613529.

The spelling of 1148621 in words is "one million, one hundred forty-eight thousand, six hundred twenty-one".