1282430761 has 2 divisors, whose sum is σ = 1282430762. Its totient is φ = 1282430760.

The previous prime is 1282430749. The next prime is 1282430777. The reversal of 1282430761 is 1670342821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1164925161 + 117505600 = 34131^2 + 10840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1282430761 - 2⁵ = 1282430729 is a prime.

It is not a weakly prime, because it can be changed into another prime (1282430701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641215380 + 641215381.

It is an arithmetic number, because the mean of its divisors is an integer number (641215381).

Almost surely, 2^1282430761 is an apocalyptic number.

It is an amenable number.

1282430761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282430761 is an equidigital number, since it uses as much as digits as its factorization.

1282430761 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 34.

The square root of 1282430761 is about 35811.0424450336. The cubic root of 1282430761 is about 1086.4539141601.

The spelling of 1282430761 in words is "one billion, two hundred eighty-two million, four hundred thirty thousand, seven hundred sixty-one".