860145890 has 8 divisors (see below), whose sum is σ = 1548262620. Its totient is φ = 344058352.

The previous prime is 860145883. The next prime is 860145953. The reversal of 860145890 is 98541068.

It can be written as a sum of positive squares in 2 ways, for example, as 842915089 + 17230801 = 29033^2 + 4151^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43007285 + ... + 43007304.

Almost surely, 2^860145890 is an apocalyptic number.

860145890 is a deficient number, since it is larger than the sum of its proper divisors (688116730).

860145890 is a wasteful number, since it uses less digits than its factorization.

860145890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86014596.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 860145890 is about 29328.2438956034. The cubic root of 860145890 is about 951.0223122191.

The spelling of 860145890 in words is "eight hundred sixty million, one hundred forty-five thousand, eight hundred ninety".