142550442421 has 8 divisors (see below), whose sum is σ = 142764192000. Its totient is φ = 142336758000.

The previous prime is 142550442409. The next prime is 142550442449. The reversal of 142550442421 is 124244055241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142550442421 - 2¹⁵ = 142550409653 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 (142550442821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5957760 + ... + 5981638.

It is an arithmetic number, because the mean of its divisors is an integer number (17845524000).

Almost surely, 2^142550442421 is an apocalyptic number.

It is an amenable number.

142550442421 is a deficient number, since it is larger than the sum of its proper divisors (213749579).

142550442421 is an equidigital number, since it uses as much as digits as its factorization.

142550442421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32579.

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 142550442421 its reverse (124244055241), we get a palindrome (266794497662).

The spelling of 142550442421 in words is "one hundred forty-two billion, five hundred fifty million, four hundred forty-two thousand, four hundred twenty-one".