197081061 has 8 divisors (see below), whose sum is σ = 262857984. Its totient is φ = 131345760.

The previous prime is 197081009. The next prime is 197081099. The reversal of 197081061 is 160180791.

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

It is not a de Polignac number, because 197081061 - 2¹¹ = 197079013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197081461) 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, 3180 + ... + 20106.

It is an arithmetic number, because the mean of its divisors is an integer number (32857248).

Almost surely, 2^197081061 is an apocalyptic number.

It is an amenable number.

197081061 is a deficient number, since it is larger than the sum of its proper divisors (65776923).

197081061 is a wasteful number, since it uses less digits than its factorization.

197081061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20811.

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 197081061 is about 14038.5562291854. The cubic root of 197081061 is about 581.9445838286.

The spelling of 197081061 in words is "one hundred ninety-seven million, eighty-one thousand, sixty-one".