2111144148 has 72 divisors (see below), whose sum is σ = 5774827968. Its totient is φ = 673111296.

The previous prime is 2111144141. The next prime is 2111144173. The reversal of 2111144148 is 8414411112.

2111144148 is a `hidden beast` number, since 211 + 1 + 1 + 441 + 4 + 8 = 666.

It is a super-2 number, since 2×2111144148² = 8913859227269291808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111144141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24861 + ... + 69572.

It is an arithmetic number, because the mean of its divisors is an integer number (80205944).

Almost surely, 2^2111144148 is an apocalyptic number.

It is an amenable number.

2111144148 is an abundant number, since it is smaller than the sum of its proper divisors (3663683820).

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

2111144148 is a wasteful number, since it uses less digits than its factorization.

2111144148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94475 (or 94461 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 2111144148 is about 45947.1886844016. The cubic root of 2111144148 is about 1282.8404021014.

The spelling of 2111144148 in words is "two billion, one hundred eleven million, one hundred forty-four thousand, one hundred forty-eight".