1254501089 has 2 divisors, whose sum is σ = 1254501090. Its totient is φ = 1254501088.

The previous prime is 1254500999. The next prime is 1254501107. The reversal of 1254501089 is 9801054521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1199444689 + 55056400 = 34633^2 + 7420^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254501089 - 2²⁰ = 1253452513 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 (1254101089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627250544 + 627250545.

It is an arithmetic number, because the mean of its divisors is an integer number (627250545).

Almost surely, 2^1254501089 is an apocalyptic number.

It is an amenable number.

1254501089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254501089 is an equidigital number, since it uses as much as digits as its factorization.

1254501089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 1254501089 is about 35418.9368699852. The cubic root of 1254501089 is about 1078.5087698072.

The spelling of 1254501089 in words is "one billion, two hundred fifty-four million, five hundred one thousand, eighty-nine".