2141999 has 4 divisors (see below), whose sum is σ = 2172240. Its totient is φ = 2111760.

The previous prime is 2141987. The next prime is 2142001. The reversal of 2141999 is 9991412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2141999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15014 + ... + 15155.

It is an arithmetic number, because the mean of its divisors is an integer number (543060).

2^2141999 is an apocalyptic number.

2141999 is a deficient number, since it is larger than the sum of its proper divisors (30241).

2141999 is an equidigital number, since it uses as much as digits as its factorization.

2141999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30240.

The product of its digits is 5832, while the sum is 35.

The square root of 2141999 is about 1463.5569684847. The cubic root of 2141999 is about 128.9059868265.

The spelling of 2141999 in words is "two million, one hundred forty-one thousand, nine hundred ninety-nine".