2092121 has 4 divisors (see below), whose sum is σ = 2101044. Its totient is φ = 2083200.

The previous prime is 2092099. The next prime is 2092133. The reversal of 2092121 is 1212902.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1651225 + 440896 = 1285^2 + 664^2 .

It is a cyclic number.

It is not a de Polignac number, because 2092121 - 2¹⁰ = 2091097 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 2092121.

It is not an unprimeable number, because it can be changed into a prime (2092021) 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, 4100 + ... + 4581.

It is an arithmetic number, because the mean of its divisors is an integer number (525261).

2^2092121 is an apocalyptic number.

It is an amenable number.

2092121 is a deficient number, since it is larger than the sum of its proper divisors (8923).

2092121 is an equidigital number, since it uses as much as digits as its factorization.

2092121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8922.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2092121 is about 1446.4166066525. The cubic root of 2092121 is about 127.8975620842.

The spelling of 2092121 in words is "two million, ninety-two thousand, one hundred twenty-one".