1273725795 has 8 divisors (see below), whose sum is σ = 2037961296. Its totient is φ = 679320416.

The previous prime is 1273725793. The next prime is 1273725797. The reversal of 1273725795 is 5975273721.

It is an interprime number because it is at equal distance from previous prime (1273725793) and next prime (1273725797).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1273725795 - 2¹ = 1273725793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1273725793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42457512 + ... + 42457541.

It is an arithmetic number, because the mean of its divisors is an integer number (254745162).

Almost surely, 2^1273725795 is an apocalyptic number.

1273725795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1273725795 is a deficient number, since it is larger than the sum of its proper divisors (764235501).

1273725795 is an equidigital number, since it uses as much as digits as its factorization.

1273725795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84915061.

The product of its digits is 926100, while the sum is 48.

The square root of 1273725795 is about 35689.2952438123. The cubic root of 1273725795 is about 1083.9900971191.

The spelling of 1273725795 in words is "one billion, two hundred seventy-three million, seven hundred twenty-five thousand, seven hundred ninety-five".