193640548 has 6 divisors (see below), whose sum is σ = 338870966. Its totient is φ = 96820272.

The previous prime is 193640543. The next prime is 193640561. The reversal of 193640548 is 845046391.

It can be written as a sum of positive squares in only one way, i.e., 144528484 + 49112064 = 12022^2 + 7008^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 193640548.

It is not an unprimeable number, because it can be changed into a prime (193640543) by changing a digit.

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, 24205065 + ... + 24205072.

Almost surely, 2^193640548 is an apocalyptic number.

It is an amenable number.

193640548 is a deficient number, since it is larger than the sum of its proper divisors (145230418).

193640548 is a wasteful number, since it uses less digits than its factorization.

193640548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48410141 (or 48410139 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 193640548 is about 13915.4787197566. The cubic root of 193640548 is about 578.5382812140.

The spelling of 193640548 in words is "one hundred ninety-three million, six hundred forty thousand, five hundred forty-eight".