2139814 has 8 divisors (see below), whose sum is σ = 3226608. Its totient is φ = 1064280.

The previous prime is 2139811. The next prime is 2139817. The reversal of 2139814 is 4189312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2139811) and next prime (2139817).

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

It is a d-powerful number, because it can be written as 2⁵ + 1 + 3⁹ + 9⁴ + 8⁷ + 1 + 4⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139811) 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, 2322 + ... + 3109.

It is an arithmetic number, because the mean of its divisors is an integer number (403326).

2^2139814 is an apocalyptic number.

2139814 is a deficient number, since it is larger than the sum of its proper divisors (1086794).

2139814 is a wasteful number, since it uses less digits than its factorization.

2139814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630.

The product of its digits is 1728, while the sum is 28.

The square root of 2139814 is about 1462.8103089601. The cubic root of 2139814 is about 128.8621406487.

It can be divided in two parts, 21398 and 14, that added together give a palindrome (21412).

The spelling of 2139814 in words is "two million, one hundred thirty-nine thousand, eight hundred fourteen".