2153518 has 8 divisors (see below), whose sum is σ = 3269448. Its totient is φ = 1063704.

The previous prime is 2153507. The next prime is 2153519. The reversal of 2153518 is 8153512.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2153492 and 2153501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6321 + ... + 6652.

It is an arithmetic number, because the mean of its divisors is an integer number (408681).

2^2153518 is an apocalyptic number.

2153518 is a deficient number, since it is larger than the sum of its proper divisors (1115930).

2153518 is a wasteful number, since it uses less digits than its factorization.

2153518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13058.

The product of its digits is 1200, while the sum is 25.

The square root of 2153518 is about 1467.4869675742. The cubic root of 2153518 is about 129.1366458616.

The spelling of 2153518 in words is "two million, one hundred fifty-three thousand, five hundred eighteen".