1454783989 has 2 divisors, whose sum is σ = 1454783990. Its totient is φ = 1454783988.

The previous prime is 1454783987. The next prime is 1454784007. The reversal of 1454783989 is 9893874541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1144671889 + 310112100 = 33833^2 + 17610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1454783989 - 2¹ = 1454783987 is a prime.

Together with 1454783987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1454783983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727391994 + 727391995.

It is an arithmetic number, because the mean of its divisors is an integer number (727391995).

Almost surely, 2^1454783989 is an apocalyptic number.

It is an amenable number.

1454783989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1454783989 is an equidigital number, since it uses as much as digits as its factorization.

1454783989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 58.

The square root of 1454783989 is about 38141.6306547059. The cubic root of 1454783989 is about 1133.0946027631.

The spelling of 1454783989 in words is "one billion, four hundred fifty-four million, seven hundred eighty-three thousand, nine hundred eighty-nine".