1234532489 has 2 divisors, whose sum is σ = 1234532490. Its totient is φ = 1234532488.

The previous prime is 1234532479. The next prime is 1234532539. The reversal of 1234532489 is 9842354321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1068766864 + 165765625 = 32692^2 + 12875^2 .

It is an emirp because it is prime and its reverse (9842354321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234532489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1234532449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617266244 + 617266245.

It is an arithmetic number, because the mean of its divisors is an integer number (617266245).

Almost surely, 2^1234532489 is an apocalyptic number.

It is an amenable number.

1234532489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234532489 is an equidigital number, since it uses as much as digits as its factorization.

1234532489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 1234532489 is about 35135.9145177694. The cubic root of 1234532489 is about 1072.7557257561.

The spelling of 1234532489 in words is "one billion, two hundred thirty-four million, five hundred thirty-two thousand, four hundred eighty-nine".