197045155 has 8 divisors (see below), whose sum is σ = 236745072. Its totient is φ = 157442208.

The previous prime is 197045153. The next prime is 197045161. The reversal of 197045155 is 551540791.

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

It is a cyclic number.

It is not a de Polignac number, because 197045155 - 2¹ = 197045153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197045153) 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, 19692 + ... + 27961.

It is an arithmetic number, because the mean of its divisors is an integer number (29593134).

Almost surely, 2^197045155 is an apocalyptic number.

197045155 is a deficient number, since it is larger than the sum of its proper divisors (39699917).

197045155 is an equidigital number, since it uses as much as digits as its factorization.

197045155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48485.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 197045155 is about 14037.2773357229. The cubic root of 197045155 is about 581.9092403829.

The spelling of 197045155 in words is "one hundred ninety-seven million, forty-five thousand, one hundred fifty-five".