101620206 has 24 divisors (see below), whose sum is σ = 220966200. Its totient is φ = 33752016.

The previous prime is 101620177. The next prime is 101620219. The reversal of 101620206 is 602026101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4881 + ... + 15068.

It is an arithmetic number, because the mean of its divisors is an integer number (9206925).

Almost surely, 2^101620206 is an apocalyptic number.

101620206 is an abundant number, since it is smaller than the sum of its proper divisors (119345994).

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

101620206 is a wasteful number, since it uses less digits than its factorization.

101620206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20240 (or 20237 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 101620206 is about 10080.6847981672. The cubic root of 101620206 is about 466.6522422979.

Adding to 101620206 its reverse (602026101), we get a palindrome (703646307).

The spelling of 101620206 in words is "one hundred one million, six hundred twenty thousand, two hundred six".