1145680865 has 8 divisors (see below), whose sum is σ = 1571219520. Its totient is φ = 785609712.

The previous prime is 1145680859. The next prime is 1145680901. The reversal of 1145680865 is 5680865411.

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

It is a cyclic number.

It is not a de Polignac number, because 1145680865 - 2⁴ = 1145680849 is a prime.

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, 16366835 + ... + 16366904.

It is an arithmetic number, because the mean of its divisors is an integer number (196402440).

Almost surely, 2^1145680865 is an apocalyptic number.

It is an amenable number.

1145680865 is a deficient number, since it is larger than the sum of its proper divisors (425538655).

1145680865 is an equidigital number, since it uses as much as digits as its factorization.

1145680865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32733751.

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 1145680865 is about 33847.9078378561. The cubic root of 1145680865 is about 1046.3762808349.

The spelling of 1145680865 in words is "one billion, one hundred forty-five million, six hundred eighty thousand, eight hundred sixty-five".