102189601 has 8 divisors (see below), whose sum is σ = 109213920. Its totient is φ = 95277888.

The previous prime is 102189599. The next prime is 102189611. The reversal of 102189601 is 106981201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102189601 - 2¹ = 102189599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102189601.

It is not an unprimeable number, because it can be changed into a prime (102189611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26271 + ... + 29908.

It is an arithmetic number, because the mean of its divisors is an integer number (13651740).

Almost surely, 2^102189601 is an apocalyptic number.

It is an amenable number.

102189601 is a deficient number, since it is larger than the sum of its proper divisors (7024319).

102189601 is a wasteful number, since it uses less digits than its factorization.

102189601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56303.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 102189601 is about 10108.8872285727. The cubic root of 102189601 is about 467.5221963209.

The spelling of 102189601 in words is "one hundred two million, one hundred eighty-nine thousand, six hundred one".