806532131 has 4 divisors (see below), whose sum is σ = 818569992. Its totient is φ = 794494272.

The previous prime is 806532119. The next prime is 806532149. The reversal of 806532131 is 131235608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806532131 is a prime.

It is a super-2 number, since 2×806532131² = 1300988156670802322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 806532094 and 806532103.

It is not an unprimeable number, because it can be changed into a prime (806732131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6018830 + ... + 6018963.

It is an arithmetic number, because the mean of its divisors is an integer number (204642498).

Almost surely, 2^806532131 is an apocalyptic number.

806532131 is a deficient number, since it is larger than the sum of its proper divisors (12037861).

806532131 is a wasteful number, since it uses less digits than its factorization.

806532131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12037860.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 806532131 is about 28399.5093443531. The cubic root of 806532131 is about 930.8375431793.

Adding to 806532131 its reverse (131235608), we get a palindrome (937767739).

The spelling of 806532131 in words is "eight hundred six million, five hundred thirty-two thousand, one hundred thirty-one".