142435300221 has 6 divisors (see below), whose sum is σ = 205739878110. Its totient is φ = 94956866808.

The previous prime is 142435300211. The next prime is 142435300223. The reversal of 142435300221 is 122003534241.

142435300221 is a `hidden beast` number, since 1 + 4 + 2 + 435 + 3 + 0 + 0 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 140764534596 + 1670765625 = 375186^2 + 40875^2 .

It is not a de Polignac number, because 142435300221 - 2⁹ = 142435299709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142435300223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7913072226 + ... + 7913072243.

It is an arithmetic number, because the mean of its divisors is an integer number (34289979685).

Almost surely, 2^142435300221 is an apocalyptic number.

It is an amenable number.

142435300221 is a deficient number, since it is larger than the sum of its proper divisors (63304577889).

142435300221 is a wasteful number, since it uses less digits than its factorization.

142435300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15826144475 (or 15826144472 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 142435300221 its reverse (122003534241), we get a palindrome (264438834462).

The spelling of 142435300221 in words is "one hundred forty-two billion, four hundred thirty-five million, three hundred thousand, two hundred twenty-one".