2154322 has 4 divisors (see below), whose sum is σ = 3231486. Its totient is φ = 1077160.

The previous prime is 2154319. The next prime is 2154329. The reversal of 2154322 is 2234512.

2154322 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 can be written as a sum of positive squares in only one way, i.e., 2076481 + 77841 = 1441^2 + 279^2 .

It is a super-2 number, since 2×2154322² = 9282206559368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2154322.

It is not an unprimeable number, because it can be changed into a prime (2154329) 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, 538579 + ... + 538582.

2^2154322 is an apocalyptic number.

2154322 is a deficient number, since it is larger than the sum of its proper divisors (1077164).

2154322 is a wasteful number, since it uses less digits than its factorization.

2154322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077163.

The product of its digits is 480, while the sum is 19.

The square root of 2154322 is about 1467.7608797076. The cubic root of 2154322 is about 129.1527145989.

Adding to 2154322 its reverse (2234512), we get a palindrome (4388834).

The spelling of 2154322 in words is "two million, one hundred fifty-four thousand, three hundred twenty-two".