208631152 has 20 divisors (see below), whose sum is σ = 404579016. Its totient is φ = 104223680.

The previous prime is 208631149. The next prime is 208631173. The reversal of 208631152 is 251136802.

It is a self number, because there is not a number n which added to its sum of digits gives 208631152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15327 + ... + 25537.

Almost surely, 2^208631152 is an apocalyptic number.

It is an amenable number.

208631152 is a deficient number, since it is larger than the sum of its proper divisors (195947864).

208631152 is a wasteful number, since it uses less digits than its factorization.

208631152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11496 (or 11490 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 208631152 is about 14444.0697865941. The cubic root of 208631152 is about 593.0978987085.

Adding to 208631152 its reverse (251136802), we get a palindrome (459767954).

The spelling of 208631152 in words is "two hundred eight million, six hundred thirty-one thousand, one hundred fifty-two".