2154423 has 8 divisors (see below), whose sum is σ = 2905200. Its totient is φ = 1419968.

The previous prime is 2154419. The next prime is 2154487. The reversal of 2154423 is 3244512.

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

It is a cyclic number.

It is not a de Polignac number, because 2154423 - 2² = 2154419 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 1 + 5⁹ + 4⁶ + 4⁸ + 2¹⁷ + 3⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 2154423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3768 + ... + 4301.

It is an arithmetic number, because the mean of its divisors is an integer number (363150).

2^2154423 is an apocalyptic number.

2154423 is a deficient number, since it is larger than the sum of its proper divisors (750777).

2154423 is an equidigital number, since it uses as much as digits as its factorization.

2154423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8161.

The product of its digits is 960, while the sum is 21.

The square root of 2154423 is about 1467.7952854537. The cubic root of 2154423 is about 129.1547329014.

Adding to 2154423 its reverse (3244512), we get a palindrome (5398935).

The spelling of 2154423 in words is "two million, one hundred fifty-four thousand, four hundred twenty-three".