1245242827 has 2 divisors, whose sum is σ = 1245242828. Its totient is φ = 1245242826.

The previous prime is 1245242797. The next prime is 1245242851. The reversal of 1245242827 is 7282425421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1245242827 - 2¹¹ = 1245240779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1245242527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622621413 + 622621414.

It is an arithmetic number, because the mean of its divisors is an integer number (622621414).

Almost surely, 2^1245242827 is an apocalyptic number.

1245242827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245242827 is an equidigital number, since it uses as much as digits as its factorization.

1245242827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71680, while the sum is 37.

The square root of 1245242827 is about 35287.9983422126. The cubic root of 1245242827 is about 1075.8490719771.

The spelling of 1245242827 in words is "one billion, two hundred forty-five million, two hundred forty-two thousand, eight hundred twenty-seven".