193661141 has 2 divisors, whose sum is σ = 193661142. Its totient is φ = 193661140.

The previous prime is 193661113. The next prime is 193661183. The reversal of 193661141 is 141166391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158508100 + 35153041 = 12590^2 + 5929^2 .

It is an emirp because it is prime and its reverse (141166391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 193661141 - 2⁶ = 193661077 is a prime.

It is a Chen prime.

It is equal to p_10747247 and since 193661141 and 10747247 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 193661098 and 193661107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193661341) 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, 96830570 + 96830571.

It is an arithmetic number, because the mean of its divisors is an integer number (96830571).

Almost surely, 2^193661141 is an apocalyptic number.

It is an amenable number.

193661141 is a deficient number, since it is larger than the sum of its proper divisors (1).

193661141 is an equidigital number, since it uses as much as digits as its factorization.

193661141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 193661141 is about 13916.2186315105. The cubic root of 193661141 is about 578.5587889996.

The spelling of 193661141 in words is "one hundred ninety-three million, six hundred sixty-one thousand, one hundred forty-one".