8065531 has 4 divisors (see below), whose sum is σ = 8539992. Its totient is φ = 7591072.

The previous prime is 8065523. The next prime is 8065573. The reversal of 8065531 is 1355608.

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

It is a cyclic number.

It is not a de Polignac number, because 8065531 - 2³ = 8065523 is a prime.

It is a super-2 number, since 2×8065531² = 130105580623922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8065531.

It is not an unprimeable number, because it can be changed into a prime (8065511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237205 + ... + 237238.

It is an arithmetic number, because the mean of its divisors is an integer number (2134998).

Almost surely, 2^8065531 is an apocalyptic number.

8065531 is a deficient number, since it is larger than the sum of its proper divisors (474461).

8065531 is a wasteful number, since it uses less digits than its factorization.

8065531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474460.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 8065531 is about 2839.9878520867. The cubic root of 8065531 is about 200.5446073348.

The spelling of 8065531 in words is "eight million, sixty-five thousand, five hundred thirty-one".