1258251259 has 2 divisors, whose sum is σ = 1258251260. Its totient is φ = 1258251258.

The previous prime is 1258251257. The next prime is 1258251283. The reversal of 1258251259 is 9521528521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1258251259 - 2¹ = 1258251257 is a prime.

Together with 1258251257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1258251257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629125629 + 629125630.

It is an arithmetic number, because the mean of its divisors is an integer number (629125630).

Almost surely, 2^1258251259 is an apocalyptic number.

1258251259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1258251259 is an equidigital number, since it uses as much as digits as its factorization.

1258251259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 40.

The square root of 1258251259 is about 35471.8375475531. The cubic root of 1258251259 is about 1079.5823885514.

The spelling of 1258251259 in words is "one billion, two hundred fifty-eight million, two hundred fifty-one thousand, two hundred fifty-nine".