208249142 has 8 divisors (see below), whose sum is σ = 315883800. Its totient is φ = 102954544.

The previous prime is 208249121. The next prime is 208249159. The reversal of 208249142 is 241942802.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 208249099 and 208249108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584792 + ... + 585147.

It is an arithmetic number, because the mean of its divisors is an integer number (39485475).

Almost surely, 2^208249142 is an apocalyptic number.

208249142 is a deficient number, since it is larger than the sum of its proper divisors (107634658).

208249142 is a wasteful number, since it uses less digits than its factorization.

208249142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170030.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 208249142 is about 14430.8399616932. The cubic root of 208249142 is about 592.7356840982.

The spelling of 208249142 in words is "two hundred eight million, two hundred forty-nine thousand, one hundred forty-two".