2115444141 has 8 divisors (see below), whose sum is σ = 3133991360. Its totient is φ = 1410296076.

The previous prime is 2115444127. The next prime is 2115444143. The reversal of 2115444141 is 1414445112.

It is a happy number.

2115444141 is a `hidden beast` number, since 211 + 5 + 4 + 441 + 4 + 1 = 666.

It is not a de Polignac number, because 2115444141 - 2¹⁹ = 2114919853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 78349783 = 2115444141 / (2 + 1 + 1 + 5 + 4 + 4 + 4 + 1 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115444143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39174865 + ... + 39174918.

It is an arithmetic number, because the mean of its divisors is an integer number (391748920).

Almost surely, 2^2115444141 is an apocalyptic number.

It is an amenable number.

2115444141 is a deficient number, since it is larger than the sum of its proper divisors (1018547219).

2115444141 is an equidigital number, since it uses as much as digits as its factorization.

2115444141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78349792 (or 78349786 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 2115444141 is about 45993.9576575011. The cubic root of 2115444141 is about 1283.7107775072.

Adding to 2115444141 its reverse (1414445112), we get a palindrome (3529889253).

The spelling of 2115444141 in words is "two billion, one hundred fifteen million, four hundred forty-four thousand, one hundred forty-one".