197136470 has 16 divisors (see below), whose sum is σ = 359844768. Its totient is φ = 77743680.

The previous prime is 197136469. The next prime is 197136491. The reversal of 197136470 is 74631791.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138119 + ... + 139538.

It is an arithmetic number, because the mean of its divisors is an integer number (22490298).

Almost surely, 2^197136470 is an apocalyptic number.

197136470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197136470 is a deficient number, since it is larger than the sum of its proper divisors (162708298).

197136470 is a wasteful number, since it uses less digits than its factorization.

197136470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277735.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 197136470 is about 14040.5295484180. The cubic root of 197136470 is about 581.9991162900. Note that the first 3 decimals are identical.

The spelling of 197136470 in words is "one hundred ninety-seven million, one hundred thirty-six thousand, four hundred seventy".