Search a number
-
+
1241489 is a prime number
BaseRepresentation
bin100101111000110010001
32100002000002
410233012101
5304211424
642335345
713360334
oct4570621
92302002
101241489
11778827
124ba555
13346112
1424461b
15197cae
hex12f191

1241489 has 2 divisors, whose sum is σ = 1241490. Its totient is φ = 1241488.

The previous prime is 1241483. The next prime is 1241491. The reversal of 1241489 is 9841421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 693889 + 547600 = 833^2 + 740^2 .

It is an emirp because it is prime and its reverse (9841421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1241489 - 212 = 1237393 is a prime.

Together with 1241491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1241483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620744 + 620745.

It is an arithmetic number, because the mean of its divisors is an integer number (620745).

21241489 is an apocalyptic number.

It is an amenable number.

1241489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241489 is an equidigital number, since it uses as much as digits as its factorization.

1241489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 1241489 is about 1114.2212527142. The cubic root of 1241489 is about 107.4766922607.

The spelling of 1241489 in words is "one million, two hundred forty-one thousand, four hundred eighty-nine".