2119381 has 8 divisors (see below), whose sum is σ = 2412864. Its totient is φ = 1842720.

The previous prime is 2119379. The next prime is 2119399. The reversal of 2119381 is 1839112.

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

It is not a de Polignac number, because 2119381 - 2¹ = 2119379 is a prime.

It is a super-2 number, since 2×2119381² = 8983551646322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119301) 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, 3936 + ... + 4441.

It is an arithmetic number, because the mean of its divisors is an integer number (301608).

2^2119381 is an apocalyptic number.

It is an amenable number.

2119381 is a deficient number, since it is larger than the sum of its proper divisors (293483).

2119381 is a wasteful number, since it uses less digits than its factorization.

2119381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8411.

The product of its digits is 432, while the sum is 25.

The square root of 2119381 is about 1455.8093968649. The cubic root of 2119381 is about 128.4506616140.

It can be divided in two parts, 2119 and 381, that added together give a square (2500 = 50²).

The spelling of 2119381 in words is "two million, one hundred nineteen thousand, three hundred eighty-one".