197288542 has 16 divisors (see below), whose sum is σ = 324036864. Its totient is φ = 89343000.

The previous prime is 197288527. The next prime is 197288543. The reversal of 197288542 is 245882791.

197288542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 197288492 and 197288501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197288543) 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, 10584 + ... + 22507.

It is an arithmetic number, because the mean of its divisors is an integer number (20252304).

Almost surely, 2^197288542 is an apocalyptic number.

197288542 is a deficient number, since it is larger than the sum of its proper divisors (126748322).

197288542 is a wasteful number, since it uses less digits than its factorization.

197288542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33375.

The product of its digits is 322560, while the sum is 46.

The square root of 197288542 is about 14045.9439697017. The cubic root of 197288542 is about 582.1487301107.

The spelling of 197288542 in words is "one hundred ninety-seven million, two hundred eighty-eight thousand, five hundred forty-two".