866281245 has 16 divisors (see below), whose sum is σ = 1387782720. Its totient is φ = 461439104.

The previous prime is 866281217. The next prime is 866281253. The reversal of 866281245 is 542182668.

It is a cyclic number.

It is not a de Polignac number, because 866281245 - 2⁶ = 866281181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 866281197 and 866281206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23559 + ... + 47828.

It is an arithmetic number, because the mean of its divisors is an integer number (86736420).

Almost surely, 2^866281245 is an apocalyptic number.

It is an amenable number.

866281245 is a deficient number, since it is larger than the sum of its proper divisors (521501475).

866281245 is a wasteful number, since it uses less digits than its factorization.

866281245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72204.

The product of its digits is 184320, while the sum is 42.

The square root of 866281245 is about 29432.6560982865. The cubic root of 866281245 is about 953.2781469867.

The spelling of 866281245 in words is "eight hundred sixty-six million, two hundred eighty-one thousand, two hundred forty-five".