2113541 has 8 divisors (see below), whose sum is σ = 2241120. Its totient is φ = 1987632.

The previous prime is 2113523. The next prime is 2113567. The reversal of 2113541 is 1453112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2966 + ... + 3608.

It is an arithmetic number, because the mean of its divisors is an integer number (280140).

2^2113541 is an apocalyptic number.

It is an amenable number.

2113541 is a deficient number, since it is larger than the sum of its proper divisors (127579).

2113541 is a wasteful number, since it uses less digits than its factorization.

2113541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835.

The product of its digits is 120, while the sum is 17.

The square root of 2113541 is about 1453.8022561545. The cubic root of 2113541 is about 128.3325702247.

Adding to 2113541 its reverse (1453112), we get a palindrome (3566653).

The spelling of 2113541 in words is "two million, one hundred thirteen thousand, five hundred forty-one".