2153142 has 20 divisors (see below), whose sum is σ = 4824996. Its totient is φ = 717660.

The previous prime is 2153113. The next prime is 2153149. The reversal of 2153142 is 2413512.

2153142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6484 + ... + 6807.

2^2153142 is an apocalyptic number.

2153142 is an abundant number, since it is smaller than the sum of its proper divisors (2671854).

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

2153142 is a wasteful number, since it uses less digits than its factorization.

2153142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13305 (or 13296 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2153142 is about 1467.3588518151. The cubic root of 2153142 is about 129.1291297562.

Adding to 2153142 its reverse (2413512), we get a palindrome (4566654).

The spelling of 2153142 in words is "two million, one hundred fifty-three thousand, one hundred forty-two".