2141905 has 8 divisors (see below), whose sum is σ = 2578752. Its totient is φ = 1707888.

The previous prime is 2141903. The next prime is 2141917. The reversal of 2141905 is 5091412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2141905 - 2¹ = 2141903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2141903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732 + ... + 2698.

It is an arithmetic number, because the mean of its divisors is an integer number (322344).

2^2141905 is an apocalyptic number.

It is an amenable number.

2141905 is a deficient number, since it is larger than the sum of its proper divisors (436847).

2141905 is an equidigital number, since it uses as much as digits as its factorization.

2141905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2141905 is about 1463.5248545891. The cubic root of 2141905 is about 128.9041011518.

The spelling of 2141905 in words is "two million, one hundred forty-one thousand, nine hundred five".