197312544 has 192 divisors, whose sum is σ = 676529280. Its totient is φ = 55157760.

The previous prime is 197312537. The next prime is 197312569. The reversal of 197312544 is 445213791.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 197312499 and 197312508.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122754 + ... + 124350.

It is an arithmetic number, because the mean of its divisors is an integer number (3523590).

Almost surely, 2^197312544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197312544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338264640).

197312544 is an abundant number, since it is smaller than the sum of its proper divisors (479216736).

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

197312544 is a wasteful number, since it uses less digits than its factorization.

197312544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640 (or 1626 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 197312544 is about 14046.7983540734. The cubic root of 197312544 is about 582.1723371029.

The spelling of 197312544 in words is "one hundred ninety-seven million, three hundred twelve thousand, five hundred forty-four".