1282645523 has 2 divisors, whose sum is σ = 1282645524. Its totient is φ = 1282645522.

The previous prime is 1282645513. The next prime is 1282645537. The reversal of 1282645523 is 3255462821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1282645523 - 2¹² = 1282641427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1282645513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641322761 + 641322762.

It is an arithmetic number, because the mean of its divisors is an integer number (641322762).

Almost surely, 2^1282645523 is an apocalyptic number.

1282645523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282645523 is an equidigital number, since it uses as much as digits as its factorization.

1282645523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 38.

The square root of 1282645523 is about 35814.0408638847. The cubic root of 1282645523 is about 1086.5145583678.

The spelling of 1282645523 in words is "one billion, two hundred eighty-two million, six hundred forty-five thousand, five hundred twenty-three".