2153789 has 8 divisors (see below), whose sum is σ = 2452032. Its totient is φ = 1872640.

The previous prime is 2153779. The next prime is 2153797. The reversal of 2153789 is 9873512.

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

It is not a de Polignac number, because 2153789 - 2⁴ = 2153773 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153729) 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, 4004 + ... + 4509.

It is an arithmetic number, because the mean of its divisors is an integer number (306504).

2^2153789 is an apocalyptic number.

It is an amenable number.

2153789 is a deficient number, since it is larger than the sum of its proper divisors (298243).

2153789 is a wasteful number, since it uses less digits than its factorization.

2153789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8547.

The product of its digits is 15120, while the sum is 35.

The square root of 2153789 is about 1467.5792993907. The cubic root of 2153789 is about 129.1420625121.

It can be divided in two parts, 215 and 3789, that added together give a palindrome (4004).

The spelling of 2153789 in words is "two million, one hundred fifty-three thousand, seven hundred eighty-nine".