2121454 has 8 divisors (see below), whose sum is σ = 3284928. Its totient is φ = 1026480.

The previous prime is 2121443. The next prime is 2121461. The reversal of 2121454 is 4541212.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17047 + ... + 17170.

It is an arithmetic number, because the mean of its divisors is an integer number (410616).

2^2121454 is an apocalyptic number.

2121454 is a deficient number, since it is larger than the sum of its proper divisors (1163474).

2121454 is a wasteful number, since it uses less digits than its factorization.

2121454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34250.

The product of its digits is 320, while the sum is 19.

The square root of 2121454 is about 1456.5211979233. The cubic root of 2121454 is about 128.4925278400.

Adding to 2121454 its reverse (4541212), we get a palindrome (6662666).

The spelling of 2121454 in words is "two million, one hundred twenty-one thousand, four hundred fifty-four".