142209208 has 8 divisors (see below), whose sum is σ = 266642280. Its totient is φ = 71104600.

The previous prime is 142209191. The next prime is 142209247. The reversal of 142209208 is 802902241.

142209208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8888068 + ... + 8888083.

It is an arithmetic number, because the mean of its divisors is an integer number (33330285).

Almost surely, 2^142209208 is an apocalyptic number.

It is an amenable number.

142209208 is a deficient number, since it is larger than the sum of its proper divisors (124433072).

142209208 is a wasteful number, since it uses less digits than its factorization.

142209208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17776157 (or 17776153 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 142209208 is about 11925.1502296617. The cubic root of 142209208 is about 521.9664301210.

The spelling of 142209208 in words is "one hundred forty-two million, two hundred nine thousand, two hundred eight".