1252005047 has 2 divisors, whose sum is σ = 1252005048. Its totient is φ = 1252005046.

The previous prime is 1252005031. The next prime is 1252005077. The reversal of 1252005047 is 7405002521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1252005047 - 2⁴ = 1252005031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252005077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626002523 + 626002524.

It is an arithmetic number, because the mean of its divisors is an integer number (626002524).

Almost surely, 2^1252005047 is an apocalyptic number.

1252005047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252005047 is an equidigital number, since it uses as much as digits as its factorization.

1252005047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 1252005047 is about 35383.6833441630. The cubic root of 1252005047 is about 1077.7930030415.

Adding to 1252005047 its reverse (7405002521), we get a palindrome (8657007568).

The spelling of 1252005047 in words is "one billion, two hundred fifty-two million, five thousand, forty-seven".