142305427 has 4 divisors (see below), whose sum is σ = 155242296. Its totient is φ = 129368560.

The previous prime is 142305413. The next prime is 142305433. The reversal of 142305427 is 724503241.

142305427 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.

It is a cyclic number.

It is not a de Polignac number, because 142305427 - 2⁷ = 142305299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142305395 and 142305404.

It is not an unprimeable number, because it can be changed into a prime (142305467) 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, 6468418 + ... + 6468439.

It is an arithmetic number, because the mean of its divisors is an integer number (38810574).

Almost surely, 2^142305427 is an apocalyptic number.

142305427 is a deficient number, since it is larger than the sum of its proper divisors (12936869).

142305427 is a wasteful number, since it uses less digits than its factorization.

142305427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12936868.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 142305427 is about 11929.1838362899. The cubic root of 142305427 is about 522.0841247154.

Adding to 142305427 its reverse (724503241), we get a palindrome (866808668).

The spelling of 142305427 in words is "one hundred forty-two million, three hundred five thousand, four hundred twenty-seven".