197543814 has 32 divisors (see below), whose sum is σ = 436984800. Its totient is φ = 59139072.

The previous prime is 197543813. The next prime is 197543831. The reversal of 197543814 is 418345791.

It is a happy number.

197543814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197543813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31339 + ... + 37110.

It is an arithmetic number, because the mean of its divisors is an integer number (13655775).

Almost surely, 2^197543814 is an apocalyptic number.

197543814 is an abundant number, since it is smaller than the sum of its proper divisors (239440986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197543814 is a wasteful number, since it uses less digits than its factorization.

197543814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68504.

The product of its digits is 120960, while the sum is 42.

The square root of 197543814 is about 14055.0280682751. The cubic root of 197543814 is about 582.3997029940.

The spelling of 197543814 in words is "one hundred ninety-seven million, five hundred forty-three thousand, eight hundred fourteen".