1295852805 has 24 divisors (see below), whose sum is σ = 2418926328. Its totient is φ = 637958016.

The previous prime is 1295852741. The next prime is 1295852837. The reversal of 1295852805 is 5082585921.

It is a happy number.

1295852805 is a `hidden beast` number, since 1 + 295 + 85 + 280 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4384836 + 1291467969 = 2094^2 + 35937^2 .

It is not a de Polignac number, because 1295852805 - 2⁶ = 1295852741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1106982 + ... + 1108151.

It is an arithmetic number, because the mean of its divisors is an integer number (100788597).

Almost surely, 2^1295852805 is an apocalyptic number.

1295852805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1295852805 is a deficient number, since it is larger than the sum of its proper divisors (1123073523).

1295852805 is a wasteful number, since it uses less digits than its factorization.

1295852805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215157 (or 2215154 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The square root of 1295852805 is about 35997.9555669485. The cubic root of 1295852805 is about 1090.2310777375.

The spelling of 1295852805 in words is "one billion, two hundred ninety-five million, eight hundred fifty-two thousand, eight hundred five".