2113619 has 4 divisors (see below), whose sum is σ = 2133120. Its totient is φ = 2094120.

The previous prime is 2113609. The next prime is 2113651. The reversal of 2113619 is 9163112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2113619 - 2⁴ = 2113603 is a prime.

It is a super-2 number, since 2×2113619² = 8934770554322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113594 and 2113603.

It is not an unprimeable number, because it can be changed into a prime (2113609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9587 + ... + 9804.

It is an arithmetic number, because the mean of its divisors is an integer number (533280).

2^2113619 is an apocalyptic number.

2113619 is a deficient number, since it is larger than the sum of its proper divisors (19501).

2113619 is a wasteful number, since it uses less digits than its factorization.

2113619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19500.

The product of its digits is 324, while the sum is 23.

The square root of 2113619 is about 1453.8290821139. The cubic root of 2113619 is about 128.3341489051.

The spelling of 2113619 in words is "two million, one hundred thirteen thousand, six hundred nineteen".