142884001 has 4 divisors (see below), whose sum is σ = 153875092. Its totient is φ = 131892912.

The previous prime is 142883977. The next prime is 142884011. The reversal of 142884001 is 100488241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19140625 + 123743376 = 4375^2 + 11124^2 .

It is a cyclic number.

It is not a de Polignac number, because 142884001 - 2²³ = 134495393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142884011) 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, 5495526 + ... + 5495551.

It is an arithmetic number, because the mean of its divisors is an integer number (38468773).

Almost surely, 2^142884001 is an apocalyptic number.

It is an amenable number.

142884001 is a deficient number, since it is larger than the sum of its proper divisors (10991091).

142884001 is a wasteful number, since it uses less digits than its factorization.

142884001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10991090.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 142884001 is about 11953.4095972655. The cubic root of 142884001 is about 522.7907172403.

The spelling of 142884001 in words is "one hundred forty-two million, eight hundred eighty-four thousand, one".