1454664989 has 2 divisors, whose sum is σ = 1454664990. Its totient is φ = 1454664988.

The previous prime is 1454664979. The next prime is 1454665007. The reversal of 1454664989 is 9894664541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1410002500 + 44662489 = 37550^2 + 6683^2 .

It is a cyclic number.

It is not a de Polignac number, because 1454664989 - 2⁴ = 1454664973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1454664949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727332494 + 727332495.

It is an arithmetic number, because the mean of its divisors is an integer number (727332495).

Almost surely, 2^1454664989 is an apocalyptic number.

It is an amenable number.

1454664989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1454664989 is an equidigital number, since it uses as much as digits as its factorization.

1454664989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 56.

The square root of 1454664989 is about 38140.0706475486. The cubic root of 1454664989 is about 1133.0637065532.

The spelling of 1454664989 in words is "one billion, four hundred fifty-four million, six hundred sixty-four thousand, nine hundred eighty-nine".