1295982965 has 4 divisors (see below), whose sum is σ = 1555179564. Its totient is φ = 1036786368.

The previous prime is 1295982949. The next prime is 1295982971. The reversal of 1295982965 is 5692895921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 853048849 + 442934116 = 29207^2 + 21046^2 .

It is a cyclic number.

It is not a de Polignac number, because 1295982965 - 2⁴ = 1295982949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1295982965.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 129598292 + ... + 129598301.

It is an arithmetic number, because the mean of its divisors is an integer number (388794891).

Almost surely, 2^1295982965 is an apocalyptic number.

It is an amenable number.

1295982965 is a deficient number, since it is larger than the sum of its proper divisors (259196599).

1295982965 is an equidigital number, since it uses as much as digits as its factorization.

1295982965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259196598.

The product of its digits is 3499200, while the sum is 56.

The square root of 1295982965 is about 35999.7634020003. The cubic root of 1295982965 is about 1090.2675787263.

The spelling of 1295982965 in words is "one billion, two hundred ninety-five million, nine hundred eighty-two thousand, nine hundred sixty-five".