142204420145 has 8 divisors (see below), whose sum is σ = 170662960104. Its totient is φ = 113751765504.

The previous prime is 142204420121. The next prime is 142204420153. The reversal of 142204420145 is 541024402241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6718589089 + 135485831056 = 81967^2 + 368084^2 .

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 142204420145 - 2¹⁰ = 142204419121 is a prime.

It is a super-3 number, since 3×142204420145³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417994 + ... + 1514963.

It is an arithmetic number, because the mean of its divisors is an integer number (21332870013).

Almost surely, 2^142204420145 is an apocalyptic number.

It is an amenable number.

142204420145 is a deficient number, since it is larger than the sum of its proper divisors (28458539959).

142204420145 is an equidigital number, since it uses as much as digits as its factorization.

142204420145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942659.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 142204420145 its reverse (541024402241), we get a palindrome (683228822386).

The spelling of 142204420145 in words is "one hundred forty-two billion, two hundred four million, four hundred twenty thousand, one hundred forty-five".