807133081 has 4 divisors (see below), whose sum is σ = 833169664. Its totient is φ = 781096500.

The previous prime is 807133073. The next prime is 807133099. The reversal of 807133081 is 180331708.

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.

It is a cyclic number.

It is not a de Polignac number, because 807133081 - 2³ = 807133073 is a prime.

It is a super-2 number, since 2×807133081² = 1302927620889105122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 26036551 = 807133081 / (8 + 0 + 7 + 1 + 3 + 3 + 0 + 8 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (807133001) by changing a digit.

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, 13018245 + ... + 13018306.

It is an arithmetic number, because the mean of its divisors is an integer number (208292416).

Almost surely, 2^807133081 is an apocalyptic number.

It is an amenable number.

807133081 is a deficient number, since it is larger than the sum of its proper divisors (26036583).

807133081 is a wasteful number, since it uses less digits than its factorization.

807133081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26036582.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 807133081 is about 28410.0876626595. The cubic root of 807133081 is about 931.0686759198.

Adding to 807133081 its reverse (180331708), we get a palindrome (987464789).

The spelling of 807133081 in words is "eight hundred seven million, one hundred thirty-three thousand, eighty-one".