1061865 has 24 divisors (see below), whose sum is σ = 2104128. Its totient is φ = 485280.

The previous prime is 1061849. The next prime is 1061867. The reversal of 1061865 is 5681601.

It is not a de Polignac number, because 1061865 - 2⁴ = 1061849 is a prime.

It is a super-2 number, since 2×1061865² = 2255114556450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1061867) 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, 1371 + ... + 2000.

It is an arithmetic number, because the mean of its divisors is an integer number (87672).

2^1061865 is an apocalyptic number.

1061865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1061865 is a deficient number, since it is larger than the sum of its proper divisors (1042263).

1061865 is a wasteful number, since it uses less digits than its factorization.

1061865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389 (or 3386 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1061865 is about 1030.4683401250. The cubic root of 1061865 is about 102.0210452538.

The spelling of 1061865 in words is "one million, sixty-one thousand, eight hundred sixty-five".