2153004 has 72 divisors (see below), whose sum is σ = 6144768. Its totient is φ = 574560.

The previous prime is 2152973. The next prime is 2153051. The reversal of 2153004 is 4003512.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30289 + ... + 30359.

It is an arithmetic number, because the mean of its divisors is an integer number (85344).

2^2153004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2153004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3072384).

2153004 is an abundant number, since it is smaller than the sum of its proper divisors (3991764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2153004 is a wasteful number, since it uses less digits than its factorization.

2153004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 102 counting only the distinct ones).

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

The square root of 2153004 is about 1467.3118277994. The cubic root of 2153004 is about 129.1263709661.

Adding to 2153004 its reverse (4003512), we get a palindrome (6156516).

The spelling of 2153004 in words is "two million, one hundred fifty-three thousand, four".