142216004 has 12 divisors (see below), whose sum is σ = 284432064. Its totient is φ = 60949704.

The previous prime is 142215991. The next prime is 142216021. The reversal of 142216004 is 400612241.

142216004 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2539544 + ... + 2539599.

It is an arithmetic number, because the mean of its divisors is an integer number (23702672).

Almost surely, 2^142216004 is an apocalyptic number.

142216004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142216004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142216004 is a wasteful number, since it uses less digits than its factorization.

142216004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079154 (or 5079152 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 142216004 is about 11925.4351702569. The cubic root of 142216004 is about 521.9747446959.

Adding to 142216004 its reverse (400612241), we get a palindrome (542828245).

The spelling of 142216004 in words is "one hundred forty-two million, two hundred sixteen thousand, four".