197916106 has 4 divisors (see below), whose sum is σ = 296874162. Its totient is φ = 98958052.

The previous prime is 197916083. The next prime is 197916109. The reversal of 197916106 is 601619791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601619791 = 73 ⋅8241367.

It can be written as a sum of positive squares in only one way, i.e., 150430225 + 47485881 = 12265^2 + 6891^2 .

It is not an unprimeable number, because it can be changed into a prime (197916109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49479025 + ... + 49479028.

Almost surely, 2^197916106 is an apocalyptic number.

197916106 is a deficient number, since it is larger than the sum of its proper divisors (98958056).

197916106 is an equidigital number, since it uses as much as digits as its factorization.

197916106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98958055.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 197916106 is about 14068.2659201481. The cubic root of 197916106 is about 582.7653378033.

The spelling of 197916106 in words is "one hundred ninety-seven million, nine hundred sixteen thousand, one hundred six".