80788135 has 4 divisors (see below), whose sum is σ = 96945768. Its totient is φ = 64630504.

The previous prime is 80788079. The next prime is 80788157. The reversal of 80788135 is 53188708.

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 80788135 - 2¹³ = 80779943 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8078809 + ... + 8078818.

It is an arithmetic number, because the mean of its divisors is an integer number (24236442).

Almost surely, 2^80788135 is an apocalyptic number.

80788135 is a deficient number, since it is larger than the sum of its proper divisors (16157633).

80788135 is a wasteful number, since it uses less digits than its factorization.

80788135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16157632.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 80788135 is about 8988.2220155045. Note that the first 3 decimals coincide. The cubic root of 80788135 is about 432.2973044203.

The spelling of 80788135 in words is "eighty million, seven hundred eighty-eight thousand, one hundred thirty-five".