193952653 has 2 divisors, whose sum is σ = 193952654. Its totient is φ = 193952652.

The previous prime is 193952651. The next prime is 193952683. The reversal of 193952653 is 356259391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191462569 + 2490084 = 13837^2 + 1578^2 .

It is an emirp because it is prime and its reverse (356259391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 193952653 - 2¹ = 193952651 is a prime.

Together with 193952651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193952651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96976326 + 96976327.

It is an arithmetic number, because the mean of its divisors is an integer number (96976327).

Almost surely, 2^193952653 is an apocalyptic number.

It is an amenable number.

193952653 is a deficient number, since it is larger than the sum of its proper divisors (1).

193952653 is an equidigital number, since it uses as much as digits as its factorization.

193952653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 218700, while the sum is 43.

The square root of 193952653 is about 13926.6885152214. The cubic root of 193952653 is about 578.8489388888.

The spelling of 193952653 in words is "one hundred ninety-three million, nine hundred fifty-two thousand, six hundred fifty-three".