101640208 has 20 divisors (see below), whose sum is σ = 198112320. Its totient is φ = 50514464.

The previous prime is 101640193. The next prime is 101640251. The reversal of 101640208 is 802046101.

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, 16348 + ... + 21691.

It is an arithmetic number, because the mean of its divisors is an integer number (9905616).

Almost surely, 2^101640208 is an apocalyptic number.

It is an amenable number.

101640208 is a deficient number, since it is larger than the sum of its proper divisors (96472112).

101640208 is a wasteful number, since it uses less digits than its factorization.

101640208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38214 (or 38208 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 101640208 is about 10081.6768446524. The cubic root of 101640208 is about 466.6828574881.

Adding to 101640208 its reverse (802046101), we get a palindrome (903686309).

The spelling of 101640208 in words is "one hundred one million, six hundred forty thousand, two hundred eight".