1252143559 has 2 divisors, whose sum is σ = 1252143560. Its totient is φ = 1252143558.

The previous prime is 1252143521. The next prime is 1252143569. The reversal of 1252143559 is 9553412521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1252143559 - 2²³ = 1243754951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252143509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626071779 + 626071780.

It is an arithmetic number, because the mean of its divisors is an integer number (626071780).

Almost surely, 2^1252143559 is an apocalyptic number.

1252143559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252143559 is an equidigital number, since it uses as much as digits as its factorization.

1252143559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 37.

The square root of 1252143559 is about 35385.6405763694. The cubic root of 1252143559 is about 1077.8327477586.

The spelling of 1252143559 in words is "one billion, two hundred fifty-two million, one hundred forty-three thousand, five hundred fifty-nine".