142404343 has 4 divisors (see below), whose sum is σ = 142430760. Its totient is φ = 142377928.

The previous prime is 142404341. The next prime is 142404349. The reversal of 142404343 is 343404241.

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

It is a cyclic number.

It is not a de Polignac number, because 142404343 - 2¹ = 142404341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142404341) 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, 1888 + ... + 16981.

It is an arithmetic number, because the mean of its divisors is an integer number (35607690).

Almost surely, 2^142404343 is an apocalyptic number.

142404343 is a deficient number, since it is larger than the sum of its proper divisors (26417).

142404343 is an equidigital number, since it uses as much as digits as its factorization.

142404343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26416.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 142404343 is about 11933.3290828670. The cubic root of 142404343 is about 522.2050629759.

Adding to 142404343 its reverse (343404241), we get a palindrome (485808584).

The spelling of 142404343 in words is "one hundred forty-two million, four hundred four thousand, three hundred forty-three".