2113524 has 36 divisors (see below), whose sum is σ = 6106464. Its totient is φ = 603792.

The previous prime is 2113523. The next prime is 2113567. The reversal of 2113524 is 4253112.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 2²⁰ + 1 + 1 + 3⁶ + 5⁶ + 2²⁰ + 4² .

It is a junction number, because it is equal to n+sod(n) for n = 2113497 and 2113506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3942 + ... + 4445.

It is an arithmetic number, because the mean of its divisors is an integer number (169624).

2^2113524 is an apocalyptic number.

It is an amenable number.

2113524 is an abundant number, since it is smaller than the sum of its proper divisors (3992940).

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

2113524 is a wasteful number, since it uses less digits than its factorization.

2113524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404 (or 8399 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2113524 is about 1453.7964094054. The cubic root of 2113524 is about 128.3322261481.

Adding to 2113524 its reverse (4253112), we get a palindrome (6366636).

It can be divided in two parts, 2 and 113524, that added together give a triangular number (113526 = T₄₇₆).

The spelling of 2113524 in words is "two million, one hundred thirteen thousand, five hundred twenty-four".