197153944 has 16 divisors (see below), whose sum is σ = 398099520. Its totient is φ = 90994080.

The previous prime is 197153941. The next prime is 197154031. The reversal of 197153944 is 449351791.

It is a self number, because there is not a number n which added to its sum of digits gives 197153944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197153941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947752 + ... + 947959.

It is an arithmetic number, because the mean of its divisors is an integer number (24881220).

Almost surely, 2^197153944 is an apocalyptic number.

It is an amenable number.

197153944 is an abundant number, since it is smaller than the sum of its proper divisors (200945576).

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

197153944 is a wasteful number, since it uses less digits than its factorization.

197153944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895730 (or 1895726 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 197153944 is about 14041.1518046063. The cubic root of 197153944 is about 582.0163117419.

The spelling of 197153944 in words is "one hundred ninety-seven million, one hundred fifty-three thousand, nine hundred forty-four".