2154543 has 8 divisors (see below), whose sum is σ = 3024000. Its totient is φ = 1360728.

The previous prime is 2154541. The next prime is 2154553. The reversal of 2154543 is 3454512.

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

It is not a de Polignac number, because 2154543 - 2¹ = 2154541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154541) 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, 18843 + ... + 18956.

It is an arithmetic number, because the mean of its divisors is an integer number (378000).

2^2154543 is an apocalyptic number.

2154543 is a deficient number, since it is larger than the sum of its proper divisors (869457).

2154543 is a wasteful number, since it uses less digits than its factorization.

2154543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37821.

The product of its digits is 2400, while the sum is 24.

The square root of 2154543 is about 1467.8361625195. The cubic root of 2154543 is about 129.1571308026.

The spelling of 2154543 in words is "two million, one hundred fifty-four thousand, five hundred forty-three".