193198562251 has 2 divisors, whose sum is σ = 193198562252. Its totient is φ = 193198562250.

The previous prime is 193198562233. The next prime is 193198562257. The reversal of 193198562251 is 152265891391.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193198562251 is a prime.

It is not a weakly prime, because it can be changed into another prime (193198562257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96599281125 + 96599281126.

It is an arithmetic number, because the mean of its divisors is an integer number (96599281126).

Almost surely, 2^193198562251 is an apocalyptic number.

193198562251 is a deficient number, since it is larger than the sum of its proper divisors (1).

193198562251 is an equidigital number, since it uses as much as digits as its factorization.

193198562251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 52.

The spelling of 193198562251 in words is "one hundred ninety-three billion, one hundred ninety-eight million, five hundred sixty-two thousand, two hundred fifty-one".