2121254 has 8 divisors (see below), whose sum is σ = 3188160. Its totient is φ = 1058536.

The previous prime is 2121253. The next prime is 2121271. The reversal of 2121254 is 4521212.

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112 + ... + 2340.

It is an arithmetic number, because the mean of its divisors is an integer number (398520).

2^2121254 is an apocalyptic number.

2121254 is a deficient number, since it is larger than the sum of its proper divisors (1066906).

2121254 is a wasteful number, since it uses less digits than its factorization.

2121254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094.

The product of its digits is 160, while the sum is 17.

The square root of 2121254 is about 1456.4525395632. The cubic root of 2121254 is about 128.4884898369.

Adding to 2121254 its reverse (4521212), we get a palindrome (6642466).

The spelling of 2121254 in words is "two million, one hundred twenty-one thousand, two hundred fifty-four".