1985031 has 6 divisors (see below), whose sum is σ = 2867280. Its totient is φ = 1323348.

The previous prime is 1985017. The next prime is 1985041. The reversal of 1985031 is 1305891.

It is not a de Polignac number, because 1985031 - 2¹⁰ = 1984007 is a prime.

It is a super-2 number, since 2×1985031² = 7880696141922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1984986 and 1985004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1985041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110271 + ... + 110288.

It is an arithmetic number, because the mean of its divisors is an integer number (477880).

2^1985031 is an apocalyptic number.

1985031 is a deficient number, since it is larger than the sum of its proper divisors (882249).

1985031 is a wasteful number, since it uses less digits than its factorization.

1985031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220565 (or 220562 counting only the distinct ones).

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

The square root of 1985031 is about 1408.9112818059. The cubic root of 1985031 is about 125.6769882099.

It can be divided in two parts, 19850 and 31, that added together give a square (19881 = 141²).

The spelling of 1985031 in words is "one million, nine hundred eighty-five thousand, thirty-one".