20142373 has 4 divisors (see below), whose sum is σ = 20196748. Its totient is φ = 20088000.

The previous prime is 20142359. The next prime is 20142377. The reversal of 20142373 is 37324102.

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 7518564 + 12623809 = 2742^2 + 3553^2 .

It is a cyclic number.

It is not a de Polignac number, because 20142373 - 2¹⁷ = 20011301 is a prime.

It is a super-2 number, since 2×20142373² = 811430380142258, 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 (20142377) 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, 26628 + ... + 27373.

It is an arithmetic number, because the mean of its divisors is an integer number (5049187).

Almost surely, 2^20142373 is an apocalyptic number.

It is an amenable number.

20142373 is a deficient number, since it is larger than the sum of its proper divisors (54375).

20142373 is an equidigital number, since it uses as much as digits as its factorization.

20142373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54374.

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

The square root of 20142373 is about 4488.0255124052. The cubic root of 20142373 is about 272.0843389343.

Adding to 20142373 its reverse (37324102), we get a palindrome (57466475).

The spelling of 20142373 in words is "twenty million, one hundred forty-two thousand, three hundred seventy-three".