2141685 has 48 divisors (see below), whose sum is σ = 4577664. Its totient is φ = 902016.

The previous prime is 2141681. The next prime is 2141687. The reversal of 2141685 is 5861412.

It is not a de Polignac number, because 2141685 - 2² = 2141681 is a prime.

2141685 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3834 + ... + 4356.

It is an arithmetic number, because the mean of its divisors is an integer number (95368).

2^2141685 is an apocalyptic number.

It is an amenable number.

2141685 is an abundant number, since it is smaller than the sum of its proper divisors (2435979).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2141685 is a wasteful number, since it uses less digits than its factorization.

2141685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 551 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 2141685 is about 1463.4496916533. The cubic root of 2141685 is about 128.8996876549.

The spelling of 2141685 in words is "two million, one hundred forty-one thousand, six hundred eighty-five".