80811235 has 8 divisors (see below), whose sum is σ = 97173936. Its totient is φ = 64515360.

The previous prime is 80811229. The next prime is 80811239. The reversal of 80811235 is 53211808.

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

It is not a de Polignac number, because 80811235 - 2¹¹ = 80809187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80811239) 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, 14004 + ... + 18913.

It is an arithmetic number, because the mean of its divisors is an integer number (12146742).

Almost surely, 2^80811235 is an apocalyptic number.

80811235 is a deficient number, since it is larger than the sum of its proper divisors (16362701).

80811235 is a wasteful number, since it uses less digits than its factorization.

80811235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33413.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 80811235 is about 8989.5069386480. The cubic root of 80811235 is about 432.3385031933.

It can be divided in two parts, 8081 and 1235, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 80811235 in words is "eighty million, eight hundred eleven thousand, two hundred thirty-five".