2141993 has 4 divisors (see below), whose sum is σ = 2448000. Its totient is φ = 1835988.

The previous prime is 2141987. The next prime is 2142001. The reversal of 2141993 is 3991412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2141993 - 2⁴ = 2141977 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2141903) 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, 152993 + ... + 153006.

It is an arithmetic number, because the mean of its divisors is an integer number (612000).

2^2141993 is an apocalyptic number.

It is an amenable number.

2141993 is a deficient number, since it is larger than the sum of its proper divisors (306007).

2141993 is an equidigital number, since it uses as much as digits as its factorization.

2141993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306006.

The product of its digits is 1944, while the sum is 29.

The square root of 2141993 is about 1463.5549186826. The cubic root of 2141993 is about 128.9058664660.

It can be divided in two parts, 21419 and 93, that added together give a palindrome (21512).

The spelling of 2141993 in words is "two million, one hundred forty-one thousand, nine hundred ninety-three".