1244845051 has 2 divisors, whose sum is σ = 1244845052. Its totient is φ = 1244845050.

The previous prime is 1244845037. The next prime is 1244845087. The reversal of 1244845051 is 1505484421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1244845051 - 2²¹ = 1242747899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1244844998 and 1244845016.

It is not a weakly prime, because it can be changed into another prime (1244848051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622422525 + 622422526.

It is an arithmetic number, because the mean of its divisors is an integer number (622422526).

Almost surely, 2^1244845051 is an apocalyptic number.

1244845051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244845051 is an equidigital number, since it uses as much as digits as its factorization.

1244845051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 1244845051 is about 35282.3617548486. The cubic root of 1244845051 is about 1075.7345046261.

The spelling of 1244845051 in words is "one billion, two hundred forty-four million, eight hundred forty-five thousand, fifty-one".