197293144 has 8 divisors (see below), whose sum is σ = 369924660. Its totient is φ = 98646568.

The previous prime is 197293133. The next prime is 197293157. The reversal of 197293144 is 441392791.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 197293097 and 197293106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12330814 + ... + 12330829.

Almost surely, 2^197293144 is an apocalyptic number.

It is an amenable number.

197293144 is a deficient number, since it is larger than the sum of its proper divisors (172631516).

197293144 is a wasteful number, since it uses less digits than its factorization.

197293144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24661649 (or 24661645 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 197293144 is about 14046.1077882807. The cubic root of 197293144 is about 582.1532565226.

The spelling of 197293144 in words is "one hundred ninety-seven million, two hundred ninety-three thousand, one hundred forty-four".