197430117 has 8 divisors (see below), whose sum is σ = 263315040. Its totient is φ = 131582640.

The previous prime is 197430073. The next prime is 197430131. The reversal of 197430117 is 711034791.

197430117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 197430117 - 2²² = 193235813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197420117) 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, 7059 + ... + 21087.

It is an arithmetic number, because the mean of its divisors is an integer number (32914380).

Almost surely, 2^197430117 is an apocalyptic number.

It is an amenable number.

197430117 is a deficient number, since it is larger than the sum of its proper divisors (65884923).

197430117 is a wasteful number, since it uses less digits than its factorization.

197430117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18723.

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 197430117 is about 14050.9827770160. The cubic root of 197430117 is about 582.2879475214.

The spelling of 197430117 in words is "one hundred ninety-seven million, four hundred thirty thousand, one hundred seventeen".