193638141 has 8 divisors (see below), whose sum is σ = 286871360. Its totient is φ = 129092076.

The previous prime is 193638119. The next prime is 193638149. The reversal of 193638141 is 141836391.

193638141 is a `hidden beast` number, since 1 + 9 + 3 + 638 + 14 + 1 = 666.

It is not a de Polignac number, because 193638141 - 2⁶ = 193638077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193638096 and 193638105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193638149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3585865 + ... + 3585918.

It is an arithmetic number, because the mean of its divisors is an integer number (35858920).

Almost surely, 2^193638141 is an apocalyptic number.

It is an amenable number.

193638141 is a deficient number, since it is larger than the sum of its proper divisors (93233219).

193638141 is an equidigital number, since it uses as much as digits as its factorization.

193638141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7171792 (or 7171786 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 193638141 is about 13915.3922330634. The cubic root of 193638141 is about 578.5358840794.

The spelling of 193638141 in words is "one hundred ninety-three million, six hundred thirty-eight thousand, one hundred forty-one".