80115075 has 30 divisors (see below), whose sum is σ = 148404564. Its totient is φ = 42726960.

The previous prime is 80115071. The next prime is 80115083. The reversal of 80115075 is 57051108.

It is not a de Polignac number, because 80115075 - 2² = 80115071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (80115071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 17757 + ... + 21806.

Almost surely, 2^80115075 is an apocalyptic number.

80115075 is a deficient number, since it is larger than the sum of its proper divisors (68289489).

80115075 is a wasteful number, since it uses less digits than its factorization.

80115075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39585 (or 39571 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 80115075 is about 8950.7024863974. The cubic root of 80115075 is about 431.0934403344.

It can be divided in two parts, 801 and 15075, that added together give a square (15876 = 126²).

The spelling of 80115075 in words is "eighty million, one hundred fifteen thousand, seventy-five".