142404235525 has 6 divisors (see below), whose sum is σ = 176581252082. Its totient is φ = 113923388400.

The previous prime is 142404235499. The next prime is 142404235531. The reversal of 142404235525 is 525532404241.

It can be written as a sum of positive squares in 3 ways, for example, as 728028324 + 141676207201 = 26982^2 + 376399^2 .

It is not a de Polignac number, because 142404235525 - 2¹³ = 142404227333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2848084686 + ... + 2848084735.

Almost surely, 2^142404235525 is an apocalyptic number.

It is an amenable number.

142404235525 is a deficient number, since it is larger than the sum of its proper divisors (34177016557).

142404235525 is an equidigital number, since it uses as much as digits as its factorization.

142404235525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696169431 (or 5696169426 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 142404235525 its reverse (525532404241), we get a palindrome (667936639766).

The spelling of 142404235525 in words is "one hundred forty-two billion, four hundred four million, two hundred thirty-five thousand, five hundred twenty-five".