2101144 has 8 divisors (see below), whose sum is σ = 3939660. Its totient is φ = 1050568.

The previous prime is 2101139. The next prime is 2101157. The reversal of 2101144 is 4411012.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2101144² = 8829612217472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131314 + ... + 131329.

2^2101144 is an apocalyptic number.

It is an amenable number.

2101144 is a deficient number, since it is larger than the sum of its proper divisors (1838516).

2101144 is a wasteful number, since it uses less digits than its factorization.

2101144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262649 (or 262645 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2101144 is about 1449.5323383768. The cubic root of 2101144 is about 128.0811659690.

Adding to 2101144 its reverse (4411012), we get a palindrome (6512156).

It can be divided in two parts, 210114 and 4, that multiplied together give a triangular number (840456 = T₁₂₉₆).

The spelling of 2101144 in words is "two million, one hundred one thousand, one hundred forty-four".