142411421 has 4 divisors (see below), whose sum is σ = 143264352. Its totient is φ = 141558492.

The previous prime is 142411417. The next prime is 142411447. The reversal of 142411421 is 124114241.

142411421 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142411421 - 2² = 142411417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142411393 and 142411402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142411411) 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, 426215 + ... + 426548.

It is an arithmetic number, because the mean of its divisors is an integer number (35816088).

Almost surely, 2^142411421 is an apocalyptic number.

It is an amenable number.

142411421 is a deficient number, since it is larger than the sum of its proper divisors (852931).

142411421 is an equidigital number, since it uses as much as digits as its factorization.

142411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852930.

The product of its digits is 256, while the sum is 20.

The square root of 142411421 is about 11933.6256435335. The cubic root of 142411421 is about 522.2137146460.

Adding to 142411421 its reverse (124114241), we get a palindrome (266525662).

The spelling of 142411421 in words is "one hundred forty-two million, four hundred eleven thousand, four hundred twenty-one".