2127842 has 4 divisors (see below), whose sum is σ = 3191766. Its totient is φ = 1063920.

The previous prime is 2127841. The next prime is 2127857. The reversal of 2127842 is 2487212.

2127842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 2070721 + 57121 = 1439^2 + 239^2 .

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2127841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531959 + ... + 531962.

2^2127842 is an apocalyptic number.

2127842 is a deficient number, since it is larger than the sum of its proper divisors (1063924).

2127842 is a wasteful number, since it uses less digits than its factorization.

2127842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063923.

The product of its digits is 1792, while the sum is 26.

The square root of 2127842 is about 1458.7124459605. The cubic root of 2127842 is about 128.6213683717.

The spelling of 2127842 in words is "two million, one hundred twenty-seven thousand, eight hundred forty-two".