197102101 has 8 divisors (see below), whose sum is σ = 225417024. Its totient is φ = 168826560.

The previous prime is 197102093. The next prime is 197102107. The reversal of 197102101 is 101201791.

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

It is not a de Polignac number, because 197102101 - 2³ = 197102093 is a prime.

It is a super-2 number, since 2×197102101² = 77698476437228402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197102107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1806 + ... + 19936.

It is an arithmetic number, because the mean of its divisors is an integer number (28177128).

Almost surely, 2^197102101 is an apocalyptic number.

It is an amenable number.

197102101 is a deficient number, since it is larger than the sum of its proper divisors (28314923).

197102101 is a wasteful number, since it uses less digits than its factorization.

197102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19691.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 197102101 is about 14039.3055739947. The cubic root of 197102101 is about 581.9652921914.

Adding to 197102101 its reverse (101201791), we get a palindrome (298303892).

The spelling of 197102101 in words is "one hundred ninety-seven million, one hundred two thousand, one hundred one".