80861245 has 8 divisors (see below), whose sum is σ = 102140640. Its totient is φ = 61284240.

The previous prime is 80861239. The next prime is 80861273. The reversal of 80861245 is 54216808.

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

It is not a de Polignac number, because 80861245 - 2⁵ = 80861213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80861245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425491 + ... + 425680.

It is an arithmetic number, because the mean of its divisors is an integer number (12767580).

Almost surely, 2^80861245 is an apocalyptic number.

It is an amenable number.

80861245 is a deficient number, since it is larger than the sum of its proper divisors (21279395).

80861245 is a wasteful number, since it uses less digits than its factorization.

80861245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851195.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 80861245 is about 8992.2880847980. The cubic root of 80861245 is about 432.4276689715.

The spelling of 80861245 in words is "eighty million, eight hundred sixty-one thousand, two hundred forty-five".