197241789 has 16 divisors (see below), whose sum is σ = 274763520. Its totient is φ = 125697600.

The previous prime is 197241773. The next prime is 197241791. The reversal of 197241789 is 987142791.

It is not a de Polignac number, because 197241789 - 2⁴ = 197241773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197241799) 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 15 ways as a sum of consecutive naturals, for example, 2437 + ... + 20010.

It is an arithmetic number, because the mean of its divisors is an integer number (17172720).

Almost surely, 2^197241789 is an apocalyptic number.

It is an amenable number.

197241789 is a deficient number, since it is larger than the sum of its proper divisors (77521731).

197241789 is a wasteful number, since it uses less digits than its factorization.

197241789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22580.

The product of its digits is 254016, while the sum is 48.

The square root of 197241789 is about 14044.2795828052. The cubic root of 197241789 is about 582.1027410405.

The spelling of 197241789 in words is "one hundred ninety-seven million, two hundred forty-one thousand, seven hundred eighty-nine".