80136388 has 12 divisors (see below), whose sum is σ = 140869120. Its totient is φ = 39888072.

The previous prime is 80136383. The next prime is 80136403. The reversal of 80136388 is 88363108.

It is not an unprimeable number, because it can be changed into a prime (80136383) 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, 44028 + ... + 45811.

Almost surely, 2^80136388 is an apocalyptic number.

It is an amenable number.

80136388 is a deficient number, since it is larger than the sum of its proper divisors (60732732).

80136388 is a wasteful number, since it uses less digits than its factorization.

80136388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90066 (or 90064 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 80136388 is about 8951.8929841682. The cubic root of 80136388 is about 431.1316648503.

The spelling of 80136388 in words is "eighty million, one hundred thirty-six thousand, three hundred eighty-eight".