2161254 has 16 divisors (see below), whose sum is σ = 4471920. Its totient is φ = 695520.

The previous prime is 2161253. The next prime is 2161259. The reversal of 2161254 is 4521612.

2161254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2161254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161253) 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 7 ways as a sum of consecutive naturals, for example, 6037 + ... + 6384.

It is an arithmetic number, because the mean of its divisors is an integer number (279495).

2^2161254 is an apocalyptic number.

2161254 is an abundant number, since it is smaller than the sum of its proper divisors (2310666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2161254 is a wasteful number, since it uses less digits than its factorization.

2161254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12455.

The product of its digits is 480, while the sum is 21.

The square root of 2161254 is about 1470.1204032323. The cubic root of 2161254 is about 129.2910919431.

Adding to 2161254 its reverse (4521612), we get a palindrome (6682866).

It can be divided in two parts, 2161 and 254, that added together give a triangular number (2415 = T₆₉).

The spelling of 2161254 in words is "two million, one hundred sixty-one thousand, two hundred fifty-four".