2113500 has 48 divisors (see below), whose sum is σ = 6158880. Its totient is φ = 563200.

The previous prime is 2113471. The next prime is 2113511. The reversal of 2113500 is 53112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796 + ... + 2204.

It is an arithmetic number, because the mean of its divisors is an integer number (128310).

2^2113500 is an apocalyptic number.

2113500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3079440).

2113500 is an abundant number, since it is smaller than the sum of its proper divisors (4045380).

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

2113500 is a wasteful number, since it uses less digits than its factorization.

2113500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431 (or 1419 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 2113500 is about 1453.7881551313. The cubic root of 2113500 is about 128.3317403899.

Adding to 2113500 its reverse (53112), we get a palindrome (2166612).

The spelling of 2113500 in words is "two million, one hundred thirteen thousand, five hundred".