1295028273 has 24 divisors (see below), whose sum is σ = 2169087424. Its totient is φ = 672740640.

The previous prime is 1295028233. The next prime is 1295028289. The reversal of 1295028273 is 3728205921.

It is not a de Polignac number, because 1295028273 - 2⁹ = 1295027761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1295028233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252286 + ... + 257367.

Almost surely, 2^1295028273 is an apocalyptic number.

It is an amenable number.

1295028273 is a deficient number, since it is larger than the sum of its proper divisors (874059151).

1295028273 is a wasteful number, since it uses less digits than its factorization.

1295028273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509685 (or 509674 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1295028273 is about 35986.5012608895. The cubic root of 1295028273 is about 1089.9997960328. Note that the first 3 decimals are identical.

The spelling of 1295028273 in words is "one billion, two hundred ninety-five million, twenty-eight thousand, two hundred seventy-three".