985275019 has 8 divisors (see below), whose sum is σ = 990672560. Its totient is φ = 979887456.

The previous prime is 985274981. The next prime is 985275041. The reversal of 985275019 is 910572589.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985275019 is a prime.

It is a super-2 number, since 2×985275019² = 1941533726130900722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 985275019.

It is not an unprimeable number, because it can be changed into a prime (985275719) 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, 276004 + ... + 279550.

It is an arithmetic number, because the mean of its divisors is an integer number (123834070).

Almost surely, 2^985275019 is an apocalyptic number.

985275019 is the 18123-rd hex number.

985275019 is a deficient number, since it is larger than the sum of its proper divisors (5397541).

985275019 is a wasteful number, since it uses less digits than its factorization.

985275019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4989.

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 985275019 is about 31389.0907641493. The cubic root of 985275019 is about 995.0673822872.

The spelling of 985275019 in words is "nine hundred eighty-five million, two hundred seventy-five thousand, nineteen".