193841557253 has 2 divisors, whose sum is σ = 193841557254. Its totient is φ = 193841557252.

The previous prime is 193841557249. The next prime is 193841557279. The reversal of 193841557253 is 352755148391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139851317089 + 53990240164 = 373967^2 + 232358^2 .

It is a cyclic number.

It is not a de Polignac number, because 193841557253 - 2² = 193841557249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 193841557195 and 193841557204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193841557453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96920778626 + 96920778627.

It is an arithmetic number, because the mean of its divisors is an integer number (96920778627).

Almost surely, 2^193841557253 is an apocalyptic number.

It is an amenable number.

193841557253 is a deficient number, since it is larger than the sum of its proper divisors (1).

193841557253 is an equidigital number, since it uses as much as digits as its factorization.

193841557253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536000, while the sum is 53.

The spelling of 193841557253 in words is "one hundred ninety-three billion, eight hundred forty-one million, five hundred fifty-seven thousand, two hundred fifty-three".