80115531 has 8 divisors (see below), whose sum is σ = 107766480. Its totient is φ = 52937472.

The previous prime is 80115527. The next prime is 80115583. The reversal of 80115531 is 13551108.

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

It is not a de Polignac number, because 80115531 - 2² = 80115527 is a prime.

It is a super-2 number, since 2×80115531² = 12836996614823922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80115031) 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, 117826 + ... + 118503.

It is an arithmetic number, because the mean of its divisors is an integer number (13470810).

Almost surely, 2^80115531 is an apocalyptic number.

80115531 is a deficient number, since it is larger than the sum of its proper divisors (27650949).

80115531 is a wasteful number, since it uses less digits than its factorization.

80115531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236445.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 80115531 is about 8950.7279592221. The cubic root of 80115531 is about 431.0942582339.

Adding to 80115531 its reverse (13551108), we get a palindrome (93666639).

The spelling of 80115531 in words is "eighty million, one hundred fifteen thousand, five hundred thirty-one".