142305704 has 8 divisors (see below), whose sum is σ = 266823210. Its totient is φ = 71152848.

The previous prime is 142305679. The next prime is 142305721. The reversal of 142305704 is 407503241.

142305704 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 only one way, i.e., 114532804 + 27772900 = 10702^2 + 5270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8894099 + ... + 8894114.

Almost surely, 2^142305704 is an apocalyptic number.

It is an amenable number.

142305704 is a deficient number, since it is larger than the sum of its proper divisors (124517506).

142305704 is a wasteful number, since it uses less digits than its factorization.

142305704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17788219 (or 17788215 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 142305704 is about 11929.1954464666. The cubic root of 142305704 is about 522.0844634638.

Adding to 142305704 its reverse (407503241), we get a palindrome (549808945).

The spelling of 142305704 in words is "one hundred forty-two million, three hundred five thousand, seven hundred four".