142435405 has 12 divisors (see below), whose sum is σ = 198828540. Its totient is φ = 97669824.

The previous prime is 142435399. The next prime is 142435451. The reversal of 142435405 is 504534241.

142435405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 18714276 + 123721129 = 4326^2 + 11123^2 .

It is not a de Polignac number, because 142435405 - 2⁹ = 142434893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290440 + ... + 290929.

It is an arithmetic number, because the mean of its divisors is an integer number (16569045).

Almost surely, 2^142435405 is an apocalyptic number.

It is an amenable number.

142435405 is a deficient number, since it is larger than the sum of its proper divisors (56393135).

142435405 is an equidigital number, since it uses as much as digits as its factorization.

142435405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581388 (or 581381 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 142435405 is about 11934.6304928138. The cubic root of 142435405 is about 522.2430289398.

Adding to 142435405 its reverse (504534241), we get a palindrome (646969646).

The spelling of 142435405 in words is "one hundred forty-two million, four hundred thirty-five thousand, four hundred five".