102101192 has 8 divisors (see below), whose sum is σ = 191439750. Its totient is φ = 51050592.

The previous prime is 102101191. The next prime is 102101213. The reversal of 102101192 is 291101201.

It can be written as a sum of positive squares in only one way, i.e., 97495876 + 4605316 = 9874^2 + 2146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 102101192.

It is not an unprimeable number, because it can be changed into a prime (102101191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6381317 + ... + 6381332.

Almost surely, 2^102101192 is an apocalyptic number.

It is an amenable number.

102101192 is a deficient number, since it is larger than the sum of its proper divisors (89338558).

102101192 is a wasteful number, since it uses less digits than its factorization.

102101192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12762655 (or 12762651 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 102101192 is about 10104.5134469701. The cubic root of 102101192 is about 467.3873323200.

Adding to 102101192 its reverse (291101201), we get a palindrome (393202393).

The spelling of 102101192 in words is "one hundred two million, one hundred one thousand, one hundred ninety-two".