142001004 has 24 divisors (see below), whose sum is σ = 333534208. Its totient is φ = 47019600.

The previous prime is 142000997. The next prime is 142001021. The reversal of 142001004 is 400100241.

142001004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37372 + ... + 40995.

Almost surely, 2^142001004 is an apocalyptic number.

It is an amenable number.

142001004 is an abundant number, since it is smaller than the sum of its proper divisors (191533204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142001004 is a wasteful number, since it uses less digits than its factorization.

142001004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78525 (or 78523 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 142001004 is about 11916.4174146427. The cubic root of 142001004 is about 521.7115741956.

Adding to 142001004 its reverse (400100241), we get a palindrome (542101245).

The spelling of 142001004 in words is "one hundred forty-two million, one thousand, four".