142533221427 has 16 divisors (see below), whose sum is σ = 211726456480. Its totient is φ = 94767389856.

The previous prime is 142533221419. The next prime is 142533221429. The reversal of 142533221427 is 724122335241.

142533221427 is a `hidden beast` number, since 1 + 4 + 2 + 5 + 3 + 3 + 221 + 427 = 666.

It is not a de Polignac number, because 142533221427 - 2³ = 142533221419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142533221391 and 142533221400.

It is not an unprimeable number, because it can be changed into a prime (142533221429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7066348 + ... + 7086489.

It is an arithmetic number, because the mean of its divisors is an integer number (13232903530).

Almost surely, 2^142533221427 is an apocalyptic number.

142533221427 is a deficient number, since it is larger than the sum of its proper divisors (69193235053).

142533221427 is a wasteful number, since it uses less digits than its factorization.

142533221427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14153219 (or 14153213 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

Adding to 142533221427 its reverse (724122335241), we get a palindrome (866655556668).

The spelling of 142533221427 in words is "one hundred forty-two billion, five hundred thirty-three million, two hundred twenty-one thousand, four hundred twenty-seven".