2121153 has 16 divisors (see below), whose sum is σ = 2934336. Its totient is φ = 1362240.

The previous prime is 2121143. The next prime is 2121167. The reversal of 2121153 is 3511212.

It is not a de Polignac number, because 2121153 - 2⁵ = 2121121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2121143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12175 + ... + 12347.

It is an arithmetic number, because the mean of its divisors is an integer number (183396).

2^2121153 is an apocalyptic number.

It is an amenable number.

2121153 is a deficient number, since it is larger than the sum of its proper divisors (813183).

2121153 is a wasteful number, since it uses less digits than its factorization.

2121153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304.

The product of its digits is 60, while the sum is 15.

The square root of 2121153 is about 1456.4178658613. The cubic root of 2121153 is about 128.4864505489.

Adding to 2121153 its reverse (3511212), we get a palindrome (5632365).

The spelling of 2121153 in words is "two million, one hundred twenty-one thousand, one hundred fifty-three".