1442549 has 2 divisors, whose sum is σ = 1442550. Its totient is φ = 1442548.

The previous prime is 1442531. The next prime is 1442579. The reversal of 1442549 is 9452441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1276900 + 165649 = 1130^2 + 407^2 .

It is an emirp because it is prime and its reverse (9452441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721274 + 721275.

It is an arithmetic number, because the mean of its divisors is an integer number (721275).

2^1442549 is an apocalyptic number.

It is an amenable number.

1442549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442549 is an equidigital number, since it uses as much as digits as its factorization.

1442549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 1442549 is about 1201.0616137401. The cubic root of 1442549 is about 112.9909147680.

It can be divided in two parts, 1442 and 549, that added together give a palindrome (1991).

The spelling of 1442549 in words is "one million, four hundred forty-two thousand, five hundred forty-nine".