1254423259 has 2 divisors, whose sum is σ = 1254423260. Its totient is φ = 1254423258.

The previous prime is 1254423257. The next prime is 1254423329. The reversal of 1254423259 is 9523244521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1254423259 - 2¹ = 1254423257 is a prime.

Together with 1254423257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1254423257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627211629 + 627211630.

It is an arithmetic number, because the mean of its divisors is an integer number (627211630).

Almost surely, 2^1254423259 is an apocalyptic number.

1254423259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254423259 is an equidigital number, since it uses as much as digits as its factorization.

1254423259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 37.

The square root of 1254423259 is about 35417.8381468999. The cubic root of 1254423259 is about 1078.4864655690.

The spelling of 1254423259 in words is "one billion, two hundred fifty-four million, four hundred twenty-three thousand, two hundred fifty-nine".