1265875073 has 2 divisors, whose sum is σ = 1265875074. Its totient is φ = 1265875072.

The previous prime is 1265875069. The next prime is 1265875103. The reversal of 1265875073 is 3705785621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1023232144 + 242642929 = 31988^2 + 15577^2 .

It is a cyclic number.

It is not a de Polignac number, because 1265875073 - 2² = 1265875069 is a prime.

It is not a weakly prime, because it can be changed into another prime (1265871073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632937536 + 632937537.

It is an arithmetic number, because the mean of its divisors is an integer number (632937537).

Almost surely, 2^1265875073 is an apocalyptic number.

It is an amenable number.

1265875073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265875073 is an equidigital number, since it uses as much as digits as its factorization.

1265875073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 1265875073 is about 35579.1381711249. The cubic root of 1265875073 is about 1081.7584160367.

The spelling of 1265875073 in words is "one billion, two hundred sixty-five million, eight hundred seventy-five thousand, seventy-three".