197105146 has 12 divisors (see below), whose sum is σ = 343928538. Its totient is φ = 84473592.

The previous prime is 197105131. The next prime is 197105189. The reversal of 197105146 is 641501791.

It can be written as a sum of positive squares in only one way, i.e., 113656921 + 83448225 = 10661^2 + 9135^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1005541 + ... + 1005736.

Almost surely, 2^197105146 is an apocalyptic number.

197105146 is a deficient number, since it is larger than the sum of its proper divisors (146823392).

197105146 is a wasteful number, since it uses less digits than its factorization.

197105146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011293 (or 2011286 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 197105146 is about 14039.4140191106. The cubic root of 197105146 is about 581.9682890734.

The spelling of 197105146 in words is "one hundred ninety-seven million, one hundred five thousand, one hundred forty-six".