2013919 has 4 divisors (see below), whose sum is σ = 2017440. Its totient is φ = 2010400.

The previous prime is 2013911. The next prime is 2013923. The reversal of 2013919 is 9193102.

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 2013919 - 2³ = 2013911 is a prime.

It is a super-2 number, since 2×2013919² = 8111739477122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 2013893 and 2013902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013911) 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, 682 + ... + 2119.

It is an arithmetic number, because the mean of its divisors is an integer number (504360).

2^2013919 is an apocalyptic number.

2013919 is a deficient number, since it is larger than the sum of its proper divisors (3521).

2013919 is an equidigital number, since it uses as much as digits as its factorization.

2013919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 2013919 is about 1419.1261395662. The cubic root of 2013919 is about 126.2837102414.

The spelling of 2013919 in words is "two million, thirteen thousand, nine hundred nineteen".