197024255 has 4 divisors (see below), whose sum is σ = 236429112. Its totient is φ = 157619400.

The previous prime is 197024239. The next prime is 197024257. The reversal of 197024255 is 552420791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552420791 = 13 ⋅42493907.

It is not a de Polignac number, because 197024255 - 2⁴ = 197024239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197024257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19702421 + ... + 19702430.

It is an arithmetic number, because the mean of its divisors is an integer number (59107278).

Almost surely, 2^197024255 is an apocalyptic number.

197024255 is a deficient number, since it is larger than the sum of its proper divisors (39404857).

197024255 is an equidigital number, since it uses as much as digits as its factorization.

197024255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39404856.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 197024255 is about 14036.5328696228. The cubic root of 197024255 is about 581.8886658550. Note that the first 3 decimals are identical.

The spelling of 197024255 in words is "one hundred ninety-seven million, twenty-four thousand, two hundred fifty-five".