208148190 has 32 divisors (see below), whose sum is σ = 502328736. Its totient is φ = 55198080.

The previous prime is 208148179. The next prime is 208148203. The reversal of 208148190 is 91841802.

208148190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×208148190² = 86651338000552200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13737 + ... + 24596.

It is an arithmetic number, because the mean of its divisors is an integer number (15697773).

Almost surely, 2^208148190 is an apocalyptic number.

208148190 is an abundant number, since it is smaller than the sum of its proper divisors (294180546).

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

208148190 is a wasteful number, since it uses less digits than its factorization.

208148190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38524.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 208148190 is about 14427.3417509949. The cubic root of 208148190 is about 592.6398893466.

Adding to 208148190 its reverse (91841802), we get a palindrome (299989992).

The spelling of 208148190 in words is "two hundred eight million, one hundred forty-eight thousand, one hundred ninety".