1258749073 has 2 divisors, whose sum is σ = 1258749074. Its totient is φ = 1258749072.

The previous prime is 1258749067. The next prime is 1258749097. The reversal of 1258749073 is 3709478521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1254009744 + 4739329 = 35412^2 + 2177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1258749073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1258749043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629374536 + 629374537.

It is an arithmetic number, because the mean of its divisors is an integer number (629374537).

Almost surely, 2^1258749073 is an apocalyptic number.

It is an amenable number.

1258749073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1258749073 is an equidigital number, since it uses as much as digits as its factorization.

1258749073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 1258749073 is about 35478.8538850961. The cubic root of 1258749073 is about 1079.7247449535.

The spelling of 1258749073 in words is "one billion, two hundred fifty-eight million, seven hundred forty-nine thousand, seventy-three".