193102849 has 2 divisors, whose sum is σ = 193102850. Its totient is φ = 193102848.

The previous prime is 193102843. The next prime is 193102867. The reversal of 193102849 is 948201391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185150449 + 7952400 = 13607^2 + 2820^2 .

It is an emirp because it is prime and its reverse (948201391) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193102849 is a prime.

It is not a weakly prime, because it can be changed into another prime (193102843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96551424 + 96551425.

It is an arithmetic number, because the mean of its divisors is an integer number (96551425).

Almost surely, 2^193102849 is an apocalyptic number.

It is an amenable number.

193102849 is a deficient number, since it is larger than the sum of its proper divisors (1).

193102849 is an equidigital number, since it uses as much as digits as its factorization.

193102849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 193102849 is about 13896.1451129441. The cubic root of 193102849 is about 578.0022918297.

The spelling of 193102849 in words is "one hundred ninety-three million, one hundred two thousand, eight hundred forty-nine".