1295772317 has 72 divisors (see below), whose sum is σ = 1751258880. Its totient is φ = 951471360.

The previous prime is 1295772307. The next prime is 1295772319. The reversal of 1295772317 is 7132775921.

It is not a de Polignac number, because 1295772317 - 2⁶ = 1295772253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1295772319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9322034 + ... + 9322172.

It is an arithmetic number, because the mean of its divisors is an integer number (24323040).

Almost surely, 2^1295772317 is an apocalyptic number.

1295772317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1295772317 is a deficient number, since it is larger than the sum of its proper divisors (455486563).

1295772317 is a wasteful number, since it uses less digits than its factorization.

1295772317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 213 counting only the distinct ones).

The product of its digits is 185220, while the sum is 44.

The square root of 1295772317 is about 35996.8375972112. The cubic root of 1295772317 is about 1090.2085051285.

The spelling of 1295772317 in words is "one billion, two hundred ninety-five million, seven hundred seventy-two thousand, three hundred seventeen".