2144120461 has 16 divisors (see below), whose sum is σ = 2657854080. Its totient is φ = 1687518720.

The previous prime is 2144120441. The next prime is 2144120471. The reversal of 2144120461 is 1640214412.

It is a cyclic number.

It is not a de Polignac number, because 2144120461 - 2⁹ = 2144119949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144120411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214851 + ... + 224608.

It is an arithmetic number, because the mean of its divisors is an integer number (166115880).

Almost surely, 2^2144120461 is an apocalyptic number.

It is an amenable number.

2144120461 is a deficient number, since it is larger than the sum of its proper divisors (513733619).

2144120461 is a wasteful number, since it uses less digits than its factorization.

2144120461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439524.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 2144120461 is about 46304.6483735704. The cubic root of 2144120461 is about 1289.4852945314.

Adding to 2144120461 its reverse (1640214412), we get a palindrome (3784334873).

The spelling of 2144120461 in words is "two billion, one hundred forty-four million, one hundred twenty thousand, four hundred sixty-one".