197442263 has 4 divisors (see below), whose sum is σ = 198624720. Its totient is φ = 196259808.

The previous prime is 197442257. The next prime is 197442277. The reversal of 197442263 is 362244791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362244791 = 2287 ⋅158393.

It is a cyclic number.

It is not a de Polignac number, because 197442263 - 2⁴ = 197442247 is a prime.

It is a super-2 number, since 2×197442263² = 77966894437122338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197442293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590978 + ... + 591311.

It is an arithmetic number, because the mean of its divisors is an integer number (49656180).

Almost surely, 2^197442263 is an apocalyptic number.

197442263 is a deficient number, since it is larger than the sum of its proper divisors (1182457).

197442263 is a wasteful number, since it uses less digits than its factorization.

197442263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182456.

The product of its digits is 72576, while the sum is 38.

The square root of 197442263 is about 14051.4149821290. The cubic root of 197442263 is about 582.2998881589.

The spelling of 197442263 in words is "one hundred ninety-seven million, four hundred forty-two thousand, two hundred sixty-three".