2140985 has 32 divisors (see below), whose sum is σ = 3290112. Its totient is φ = 1298880.

The previous prime is 2140973. The next prime is 2140987. The reversal of 2140985 is 5890412.

It is not a de Polignac number, because 2140985 - 2⁴ = 2140969 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25754 + ... + 25836.

It is an arithmetic number, because the mean of its divisors is an integer number (102816).

2^2140985 is an apocalyptic number.

It is an amenable number.

2140985 is a deficient number, since it is larger than the sum of its proper divisors (1149127).

2140985 is a wasteful number, since it uses less digits than its factorization.

2140985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2140985 is about 1463.2105111706. The cubic root of 2140985 is about 128.8856426991.

It can be divided in two parts, 2140 and 985, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2140985 in words is "two million, one hundred forty thousand, nine hundred eighty-five".