1252486427 has 2 divisors, whose sum is σ = 1252486428. Its totient is φ = 1252486426.

The previous prime is 1252486381. The next prime is 1252486429. The reversal of 1252486427 is 7246842521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1252486427 - 2¹² = 1252482331 is a prime.

Together with 1252486429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1252486429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626243213 + 626243214.

It is an arithmetic number, because the mean of its divisors is an integer number (626243214).

Almost surely, 2^1252486427 is an apocalyptic number.

1252486427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252486427 is an equidigital number, since it uses as much as digits as its factorization.

1252486427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 41.

The square root of 1252486427 is about 35390.4849783102. The cubic root of 1252486427 is about 1077.9311179042.

The spelling of 1252486427 in words is "one billion, two hundred fifty-two million, four hundred eighty-six thousand, four hundred twenty-seven".