1259040787 has 2 divisors, whose sum is σ = 1259040788. Its totient is φ = 1259040786.

The previous prime is 1259040779. The next prime is 1259040803. The reversal of 1259040787 is 7870409521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1259040787 - 2³ = 1259040779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1259040737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629520393 + 629520394.

It is an arithmetic number, because the mean of its divisors is an integer number (629520394).

Almost surely, 2^1259040787 is an apocalyptic number.

1259040787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1259040787 is an equidigital number, since it uses as much as digits as its factorization.

1259040787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 1259040787 is about 35482.9647436626. The cubic root of 1259040787 is about 1079.8081469337.

The spelling of 1259040787 in words is "one billion, two hundred fifty-nine million, forty thousand, seven hundred eighty-seven".