1035981 has 12 divisors (see below), whose sum is σ = 1522560. Its totient is φ = 678600.

The previous prime is 1035977. The next prime is 1036001. The reversal of 1035981 is 1895301.

It is not a de Polignac number, because 1035981 - 2² = 1035977 is a prime.

It is a super-3 number, since 3×1035981³ = 3335620437749943423, which contains 333 as substring. Note that it is a super-d number also for d = 2.

1035981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1035581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445 + ... + 1506.

It is an arithmetic number, because the mean of its divisors is an integer number (126880).

2^1035981 is an apocalyptic number.

It is an amenable number.

1035981 is a deficient number, since it is larger than the sum of its proper divisors (486579).

1035981 is a wasteful number, since it uses less digits than its factorization.

1035981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016 (or 2013 counting only the distinct ones).

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

The square root of 1035981 is about 1017.8315184744. The cubic root of 1035981 is about 101.1852626865.

It can be divided in two parts, 10359 and 81, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 1035981 in words is "one million, thirty-five thousand, nine hundred eighty-one".