2153242 has 16 divisors (see below), whose sum is σ = 3975552. Its totient is φ = 851760.

The previous prime is 2153227. The next prime is 2153243. The reversal of 2153242 is 2423512.

It is a super-2 number, since 2×2153242² = 9272902221128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2153243) 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, 5734 + ... + 6097.

It is an arithmetic number, because the mean of its divisors is an integer number (248472).

2^2153242 is an apocalyptic number.

2153242 is a deficient number, since it is larger than the sum of its proper divisors (1822310).

2153242 is a wasteful number, since it uses less digits than its factorization.

2153242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11853.

The product of its digits is 480, while the sum is 19.

The square root of 2153242 is about 1467.3929262471. The cubic root of 2153242 is about 129.1311288058.

Adding to 2153242 its reverse (2423512), we get a palindrome (4576754).

The spelling of 2153242 in words is "two million, one hundred fifty-three thousand, two hundred forty-two".