142616427 has 4 divisors (see below), whose sum is σ = 190155240. Its totient is φ = 95077616.

The previous prime is 142616387. The next prime is 142616431. The reversal of 142616427 is 724616241.

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 142616427 - 2¹¹ = 142614379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142616477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23769402 + ... + 23769407.

It is an arithmetic number, because the mean of its divisors is an integer number (47538810).

Almost surely, 2^142616427 is an apocalyptic number.

142616427 is a deficient number, since it is larger than the sum of its proper divisors (47538813).

142616427 is an equidigital number, since it uses as much as digits as its factorization.

142616427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47538812.

The product of its digits is 16128, while the sum is 33.

The square root of 142616427 is about 11942.2119810360. The cubic root of 142616427 is about 522.4641758670.

The spelling of 142616427 in words is "one hundred forty-two million, six hundred sixteen thousand, four hundred twenty-seven".