2121059 has 4 divisors (see below), whose sum is σ = 2125200. Its totient is φ = 2116920.

The previous prime is 2121043. The next prime is 2121121. The reversal of 2121059 is 9501212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121059 - 2⁴ = 2121043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121059.

It is not an unprimeable number, because it can be changed into a prime (2121029) 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, 1172 + ... + 2369.

It is an arithmetic number, because the mean of its divisors is an integer number (531300).

2^2121059 is an apocalyptic number.

2121059 is a deficient number, since it is larger than the sum of its proper divisors (4141).

2121059 is an equidigital number, since it uses as much as digits as its factorization.

2121059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2121059 is about 1456.3855945456. The cubic root of 2121059 is about 128.4845525396.

The spelling of 2121059 in words is "two million, one hundred twenty-one thousand, fifty-nine".