1252484089 has 2 divisors, whose sum is σ = 1252484090. Its totient is φ = 1252484088.

The previous prime is 1252484087. The next prime is 1252484099. The reversal of 1252484089 is 9804842521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1134544489 + 117939600 = 33683^2 + 10860^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252484089 - 2¹ = 1252484087 is a prime.

Together with 1252484087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1252484087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626242044 + 626242045.

It is an arithmetic number, because the mean of its divisors is an integer number (626242045).

Almost surely, 2^1252484089 is an apocalyptic number.

It is an amenable number.

1252484089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252484089 is an equidigital number, since it uses as much as digits as its factorization.

1252484089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 1252484089 is about 35390.4519468175. The cubic root of 1252484089 is about 1077.9304471838.

The spelling of 1252484089 in words is "one billion, two hundred fifty-two million, four hundred eighty-four thousand, eighty-nine".