201620107 has 4 divisors (see below), whose sum is σ = 217129360. Its totient is φ = 186110856.

The previous prime is 201620071. The next prime is 201620113. The reversal of 201620107 is 701026102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201620107 - 2¹⁵ = 201587339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201620117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7754607 + ... + 7754632.

It is an arithmetic number, because the mean of its divisors is an integer number (54282340).

Almost surely, 2^201620107 is an apocalyptic number.

201620107 is a deficient number, since it is larger than the sum of its proper divisors (15509253).

201620107 is a wasteful number, since it uses less digits than its factorization.

201620107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15509252.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 201620107 is about 14199.2995249766. The cubic root of 201620107 is about 586.3783768154.

Adding to 201620107 its reverse (701026102), we get a palindrome (902646209).

The spelling of 201620107 in words is "two hundred one million, six hundred twenty thousand, one hundred seven".