1285082723 has 2 divisors, whose sum is σ = 1285082724. Its totient is φ = 1285082722.

The previous prime is 1285082719. The next prime is 1285082741. The reversal of 1285082723 is 3272805821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1285082723 - 2² = 1285082719 is a prime.

It is not a weakly prime, because it can be changed into another prime (1285082783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642541361 + 642541362.

It is an arithmetic number, because the mean of its divisors is an integer number (642541362).

Almost surely, 2^1285082723 is an apocalyptic number.

1285082723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285082723 is an equidigital number, since it uses as much as digits as its factorization.

1285082723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 1285082723 is about 35848.0504769785. The cubic root of 1285082723 is about 1087.2022978309.

The spelling of 1285082723 in words is "one billion, two hundred eighty-five million, eighty-two thousand, seven hundred twenty-three".