1282002749 has 2 divisors, whose sum is σ = 1282002750. Its totient is φ = 1282002748.

The previous prime is 1282002707. The next prime is 1282002769. The reversal of 1282002749 is 9472002821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1280351524 + 1651225 = 35782^2 + 1285^2 .

It is a cyclic number.

It is not a de Polignac number, because 1282002749 - 2¹⁶ = 1281937213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1282002769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641001374 + 641001375.

It is an arithmetic number, because the mean of its divisors is an integer number (641001375).

Almost surely, 2^1282002749 is an apocalyptic number.

It is an amenable number.

1282002749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282002749 is an equidigital number, since it uses as much as digits as its factorization.

1282002749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 1282002749 is about 35805.0659683794. The cubic root of 1282002749 is about 1086.3330325060. Note that the first 3 decimals are identical.

The spelling of 1282002749 in words is "one billion, two hundred eighty-two million, two thousand, seven hundred forty-nine".