1355449 has 2 divisors, whose sum is σ = 1355450. Its totient is φ = 1355448.

The previous prime is 1355447. The next prime is 1355483. The reversal of 1355449 is 9445531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 765625 + 589824 = 875^2 + 768^2 .

It is an emirp because it is prime and its reverse (9445531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1355449 - 2¹ = 1355447 is a prime.

Together with 1355447, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1355449.

It is not a weakly prime, because it can be changed into another prime (1355443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677724 + 677725.

It is an arithmetic number, because the mean of its divisors is an integer number (677725).

2^1355449 is an apocalyptic number.

It is an amenable number.

1355449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355449 is an equidigital number, since it uses as much as digits as its factorization.

1355449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 1355449 is about 1164.2375187220. The cubic root of 1355449 is about 110.6694437699.

The spelling of 1355449 in words is "one million, three hundred fifty-five thousand, four hundred forty-nine".