2121374 has 4 divisors (see below), whose sum is σ = 3182064. Its totient is φ = 1060686.

The previous prime is 2121373. The next prime is 2121377. The reversal of 2121374 is 4731212.

2121374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121373) 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 as a sum of consecutive naturals, namely, 530342 + ... + 530345.

It is an arithmetic number, because the mean of its divisors is an integer number (795516).

2^2121374 is an apocalyptic number.

2121374 is a deficient number, since it is larger than the sum of its proper divisors (1060690).

2121374 is a wasteful number, since it uses less digits than its factorization.

2121374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060689.

The product of its digits is 336, while the sum is 20.

The square root of 2121374 is about 1456.4937349676. The cubic root of 2121374 is about 128.4909126692.

Adding to 2121374 its reverse (4731212), we get a palindrome (6852586).

The spelling of 2121374 in words is "two million, one hundred twenty-one thousand, three hundred seventy-four".