2142373 has 4 divisors (see below), whose sum is σ = 2194668. Its totient is φ = 2090080.

The previous prime is 2142353. The next prime is 2142377. The reversal of 2142373 is 3732412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 338724 + 1803649 = 582^2 + 1343^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142373 - 2⁵ = 2142341 is a prime.

It is a super-2 number, since 2×2142373² = 9179524142258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142377) 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, 26086 + ... + 26167.

It is an arithmetic number, because the mean of its divisors is an integer number (548667).

2^2142373 is an apocalyptic number.

It is an amenable number.

2142373 is a deficient number, since it is larger than the sum of its proper divisors (52295).

2142373 is an equidigital number, since it uses as much as digits as its factorization.

2142373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52294.

The product of its digits is 1008, while the sum is 22.

The square root of 2142373 is about 1463.6847338139. The cubic root of 2142373 is about 128.9134888583.

Adding to 2142373 its reverse (3732412), we get a palindrome (5874785).

The spelling of 2142373 in words is "two million, one hundred forty-two thousand, three hundred seventy-three".