1252547047 has 2 divisors, whose sum is σ = 1252547048. Its totient is φ = 1252547046.

The previous prime is 1252547017. The next prime is 1252547071. The reversal of 1252547047 is 7407452521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1252547047 - 2²⁷ = 1118329319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1252546997 and 1252547015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252547017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626273523 + 626273524.

It is an arithmetic number, because the mean of its divisors is an integer number (626273524).

Almost surely, 2^1252547047 is an apocalyptic number.

1252547047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252547047 is an equidigital number, since it uses as much as digits as its factorization.

1252547047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 1252547047 is about 35391.3414128371. The cubic root of 1252547047 is about 1077.9485081473.

Adding to 1252547047 its reverse (7407452521), we get a palindrome (8659999568).

The spelling of 1252547047 in words is "one billion, two hundred fifty-two million, five hundred forty-seven thousand, forty-seven".