985001031 has 24 divisors (see below), whose sum is σ = 1626992640. Its totient is φ = 562525776.

The previous prime is 985000987. The next prime is 985001033. The reversal of 985001031 is 130100589.

It is not a de Polignac number, because 985001031 - 2¹⁰ = 985000007 is a prime.

It is a super-2 number, since 2×985001031² = 1940454062142125922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 985000986 and 985001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985001033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137566 + ... + 144548.

It is an arithmetic number, because the mean of its divisors is an integer number (67791360).

Almost surely, 2^985001031 is an apocalyptic number.

985001031 is a deficient number, since it is larger than the sum of its proper divisors (641991609).

985001031 is a wasteful number, since it uses less digits than its factorization.

985001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9235 (or 9232 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 985001031 is about 31384.7260781419. The cubic root of 985001031 is about 994.9751367069.

The spelling of 985001031 in words is "nine hundred eighty-five million, one thousand, thirty-one".