197081235 has 32 divisors (see below), whose sum is σ = 377321280. Its totient is φ = 97023744.

The previous prime is 197081233. The next prime is 197081321. The reversal of 197081235 is 532180791.

It is not a de Polignac number, because 197081235 - 2¹ = 197081233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197081235.

It is not an unprimeable number, because it can be changed into a prime (197081233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54394 + ... + 57903.

It is an arithmetic number, because the mean of its divisors is an integer number (11791290).

Almost surely, 2^197081235 is an apocalyptic number.

197081235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

197081235 is a deficient number, since it is larger than the sum of its proper divisors (180240045).

197081235 is a wasteful number, since it uses less digits than its factorization.

197081235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112324 (or 112318 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 197081235 is about 14038.5624264025. The cubic root of 197081235 is about 581.9447550920.

The spelling of 197081235 in words is "one hundred ninety-seven million, eighty-one thousand, two hundred thirty-five".