193930019 has 2 divisors, whose sum is σ = 193930020. Its totient is φ = 193930018.

The previous prime is 193930013. The next prime is 193930027. The reversal of 193930019 is 910039391.

It is a happy number.

193930019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 193930019 - 2⁴ = 193930003 is a prime.

It is a super-2 number, since 2×193930019² = 75217704538680722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (193930013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96965009 + 96965010.

It is an arithmetic number, because the mean of its divisors is an integer number (96965010).

Almost surely, 2^193930019 is an apocalyptic number.

193930019 is a deficient number, since it is larger than the sum of its proper divisors (1).

193930019 is an equidigital number, since it uses as much as digits as its factorization.

193930019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 193930019 is about 13925.8758790964. The cubic root of 193930019 is about 578.8264210623.

The spelling of 193930019 in words is "one hundred ninety-three million, nine hundred thirty thousand, nineteen".