2121148 has 12 divisors (see below), whose sum is σ = 3757320. Its totient is φ = 1047632.

The previous prime is 2121143. The next prime is 2121167. The reversal of 2121148 is 8411212.

It is a happy number.

2121148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2863 + ... + 3526.

It is an arithmetic number, because the mean of its divisors is an integer number (313110).

2^2121148 is an apocalyptic number.

It is an amenable number.

2121148 is a deficient number, since it is larger than the sum of its proper divisors (1636172).

2121148 is a wasteful number, since it uses less digits than its factorization.

2121148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476 (or 6474 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

The square root of 2121148 is about 1456.4161493200. The cubic root of 2121148 is about 128.4863495924.

Subtracting 2121148 from its reverse (8411212), we obtain a square (6290064 = 2508²).

The spelling of 2121148 in words is "two million, one hundred twenty-one thousand, one hundred forty-eight".