2131240144 has 20 divisors (see below), whose sum is σ = 4504667040. Its totient is φ = 968745440.

The previous prime is 2131240129. The next prime is 2131240151. The reversal of 2131240144 is 4410421312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 6054484 + ... + 6054835.

It is an arithmetic number, because the mean of its divisors is an integer number (225233352).

Almost surely, 2^2131240144 is an apocalyptic number.

It is an amenable number.

2131240144 is an abundant number, since it is smaller than the sum of its proper divisors (2373426896).

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

2131240144 is a wasteful number, since it uses less digits than its factorization.

2131240144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12109338 (or 12109332 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2131240144 is about 46165.3565349603. The cubic root of 2131240144 is about 1286.8980100125.

Adding to 2131240144 its reverse (4410421312), we get a palindrome (6541661456).

The spelling of 2131240144 in words is "two billion, one hundred thirty-one million, two hundred forty thousand, one hundred forty-four".