1454989 has 2 divisors, whose sum is σ = 1454990. Its totient is φ = 1454988.

The previous prime is 1454987. The next prime is 1454993. The reversal of 1454989 is 9894541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 514089 = 970^2 + 717^2 .

It is an emirp because it is prime and its reverse (9894541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1454989 - 2¹ = 1454987 is a prime.

Together with 1454987, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1454983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727494 + 727495.

It is an arithmetic number, because the mean of its divisors is an integer number (727495).

2^1454989 is an apocalyptic number.

It is an amenable number.

1454989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1454989 is an equidigital number, since it uses as much as digits as its factorization.

1454989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The square root of 1454989 is about 1206.2292485262. The cubic root of 1454989 is about 113.3147826231.

The spelling of 1454989 in words is "one million, four hundred fifty-four thousand, nine hundred eighty-nine".