1456439 has 2 divisors, whose sum is σ = 1456440. Its totient is φ = 1456438.

The previous prime is 1456417. The next prime is 1456451. The reversal of 1456439 is 9346541.

It is a strong prime.

It is an emirp because it is prime and its reverse (9346541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1456439 - 2¹⁶ = 1390903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1456739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728219 + 728220.

It is an arithmetic number, because the mean of its divisors is an integer number (728220).

2^1456439 is an apocalyptic number.

1456439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1456439 is an equidigital number, since it uses as much as digits as its factorization.

1456439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 1456439 is about 1206.8301454637. The cubic root of 1456439 is about 113.3524122052.

The spelling of 1456439 in words is "one million, four hundred fifty-six thousand, four hundred thirty-nine".