805135453 has 8 divisors (see below), whose sum is σ = 854650872. Its totient is φ = 755859456.

The previous prime is 805135421. The next prime is 805135459. The reversal of 805135453 is 354531508.

It can be written as a sum of positive squares in 4 ways, for example, as 517426009 + 287709444 = 22747^2 + 16962^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 805135453 - 2⁵ = 805135421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805135459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52900 + ... + 66397.

It is an arithmetic number, because the mean of its divisors is an integer number (106831359).

Almost surely, 2^805135453 is an apocalyptic number.

It is an amenable number.

805135453 is a deficient number, since it is larger than the sum of its proper divisors (49515419).

805135453 is a wasteful number, since it uses less digits than its factorization.

805135453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119711.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 805135453 is about 28374.9088632898. The cubic root of 805135453 is about 930.2999198394.

The spelling of 805135453 in words is "eight hundred five million, one hundred thirty-five thousand, four hundred fifty-three".