197730153 has 20 divisors (see below), whose sum is σ = 298943568. Its totient is φ = 130227480.

The previous prime is 197730139. The next prime is 197730157. The reversal of 197730153 is 351037791.

It is not a de Polignac number, because 197730153 - 2⁸ = 197729897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197730157) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7983 + ... + 21428.

Almost surely, 2^197730153 is an apocalyptic number.

It is an amenable number.

197730153 is a deficient number, since it is larger than the sum of its proper divisors (101213415).

197730153 is an equidigital number, since it uses as much as digits as its factorization.

197730153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29506 (or 29497 counting only the distinct ones).

The product of its (nonzero) digits is 19845, while the sum is 36.

The square root of 197730153 is about 14061.6554146374. The cubic root of 197730153 is about 582.5827673165.

The spelling of 197730153 in words is "one hundred ninety-seven million, seven hundred thirty thousand, one hundred fifty-three".