805097136 has 40 divisors (see below), whose sum is σ = 2119083120. Its totient is φ = 263301376.

The previous prime is 805097107. The next prime is 805097141. The reversal of 805097136 is 631790508.

It is a junction number, because it is equal to n+sod(n) for n = 805097094 and 805097103.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 155691 + ... + 160778.

It is an arithmetic number, because the mean of its divisors is an integer number (52977078).

Almost surely, 2^805097136 is an apocalyptic number.

It is an amenable number.

805097136 is an abundant number, since it is smaller than the sum of its proper divisors (1313985984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805097136 is a wasteful number, since it uses less digits than its factorization.

805097136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316533 (or 316527 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 805097136 is about 28374.2336636604. The cubic root of 805097136 is about 930.2851617150.

The spelling of 805097136 in words is "eight hundred five million, ninety-seven thousand, one hundred thirty-six".