2157541144 has 16 divisors (see below), whose sum is σ = 4413152520. Its totient is φ = 980700480.

The previous prime is 2157541123. The next prime is 2157541153. The reversal of 2157541144 is 4411457512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12258669 + ... + 12258844.

Almost surely, 2^2157541144 is an apocalyptic number.

It is an amenable number.

2157541144 is an abundant number, since it is smaller than the sum of its proper divisors (2255611376).

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

2157541144 is a wasteful number, since it uses less digits than its factorization.

2157541144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24517530 (or 24517526 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 2157541144 is about 46449.3395432056. The cubic root of 2157541144 is about 1292.1701236425.

Adding to 2157541144 its reverse (4411457512), we get a palindrome (6568998656).

The spelling of 2157541144 in words is "two billion, one hundred fifty-seven million, five hundred forty-one thousand, one hundred forty-four".