2154003 has 8 divisors (see below), whose sum is σ = 2885568. Its totient is φ = 1429224.

The previous prime is 2153993. The next prime is 2154007. The reversal of 2154003 is 3004512.

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

It is not a de Polignac number, because 2154003 - 2⁶ = 2153939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2154007) 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, 901 + ... + 2262.

It is an arithmetic number, because the mean of its divisors is an integer number (360696).

2^2154003 is an apocalyptic number.

2154003 is a deficient number, since it is larger than the sum of its proper divisors (731565).

2154003 is a wasteful number, since it uses less digits than its factorization.

2154003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3393.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2154003 is about 1467.6522067574. The cubic root of 2154003 is about 129.1463395461.

Adding to 2154003 its reverse (3004512), we get a palindrome (5158515).

The spelling of 2154003 in words is "two million, one hundred fifty-four thousand, three".