193841557453 has 2 divisors, whose sum is σ = 193841557454. Its totient is φ = 193841557452.

The previous prime is 193841557439. The next prime is 193841557457. The reversal of 193841557453 is 354755148391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116146684809 + 77694872644 = 340803^2 + 278738^2 .

It is a cyclic number.

It is not a de Polignac number, because 193841557453 - 2⁹ = 193841556941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 193841557394 and 193841557403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193841557457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96920778726 + 96920778727.

It is an arithmetic number, because the mean of its divisors is an integer number (96920778727).

Almost surely, 2^193841557453 is an apocalyptic number.

It is an amenable number.

193841557453 is a deficient number, since it is larger than the sum of its proper divisors (1).

193841557453 is an equidigital number, since it uses as much as digits as its factorization.

193841557453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072000, while the sum is 55.

The spelling of 193841557453 in words is "one hundred ninety-three billion, eight hundred forty-one million, five hundred fifty-seven thousand, four hundred fifty-three".