1295923281 has 4 divisors (see below), whose sum is σ = 1727897712. Its totient is φ = 863948852.

The previous prime is 1295923273. The next prime is 1295923297. The reversal of 1295923281 is 1823295921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1823295921 = 3 ⋅607765307.

It is a cyclic number.

It is not a de Polignac number, because 1295923281 - 2³ = 1295923273 is a prime.

It is a super-2 number, since 2×1295923281² = 3358834300475609922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1295923231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215987211 + ... + 215987216.

It is an arithmetic number, because the mean of its divisors is an integer number (431974428).

Almost surely, 2^1295923281 is an apocalyptic number.

It is an amenable number.

1295923281 is a deficient number, since it is larger than the sum of its proper divisors (431974431).

1295923281 is an equidigital number, since it uses as much as digits as its factorization.

1295923281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431974430.

The product of its digits is 77760, while the sum is 42.

The square root of 1295923281 is about 35998.9344425637. The cubic root of 1295923281 is about 1090.2508417447.

The spelling of 1295923281 in words is "one billion, two hundred ninety-five million, nine hundred twenty-three thousand, two hundred eighty-one".