2123051 has 4 divisors (see below), whose sum is σ = 2426352. Its totient is φ = 1819752.

The previous prime is 2123047. The next prime is 2123053. The reversal of 2123051 is 1503212.

It is a happy number.

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 2123051 - 2² = 2123047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123053) 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, 151640 + ... + 151653.

It is an arithmetic number, because the mean of its divisors is an integer number (606588).

2^2123051 is an apocalyptic number.

2123051 is a deficient number, since it is larger than the sum of its proper divisors (303301).

2123051 is an equidigital number, since it uses as much as digits as its factorization.

2123051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303300.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2123051 is about 1457.0693188726. The cubic root of 2123051 is about 128.5247621939.

Adding to 2123051 its reverse (1503212), we get a palindrome (3626263).

The spelling of 2123051 in words is "two million, one hundred twenty-three thousand, fifty-one".