142435777 has 4 divisors (see below), whose sum is σ = 155384496. Its totient is φ = 129487060.

The previous prime is 142435771. The next prime is 142435781. The reversal of 142435777 is 777534241.

142435777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 777534241 = 11 ⋅70684931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142435777 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142435771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6474343 + ... + 6474364.

It is an arithmetic number, because the mean of its divisors is an integer number (38846124).

Almost surely, 2^142435777 is an apocalyptic number.

It is an amenable number.

142435777 is a deficient number, since it is larger than the sum of its proper divisors (12948719).

142435777 is a wasteful number, since it uses less digits than its factorization.

142435777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12948718.

The product of its digits is 164640, while the sum is 40.

The square root of 142435777 is about 11934.6460777017. The cubic root of 142435777 is about 522.2434835885.

The spelling of 142435777 in words is "one hundred forty-two million, four hundred thirty-five thousand, seven hundred seventy-seven".