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193139 is a prime number
BaseRepresentation
bin101111001001110011
3100210221022
4233021303
522140024
64050055
71433042
oct571163
9323838
10193139
11122121
129392b
1369bab
1450559
153c35e
hex2f273

193139 has 2 divisors, whose sum is σ = 193140. Its totient is φ = 193138.

The previous prime is 193133. The next prime is 193147. The reversal of 193139 is 931391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 193139 - 28 = 192883 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (193133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96569 + 96570.

It is an arithmetic number, because the mean of its divisors is an integer number (96570).

2193139 is an apocalyptic number.

193139 is a deficient number, since it is larger than the sum of its proper divisors (1).

193139 is an equidigital number, since it uses as much as digits as its factorization.

193139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729, while the sum is 26.

The square root of 193139 is about 439.4758241360. The cubic root of 193139 is about 57.8038359064.

The spelling of 193139 in words is "one hundred ninety-three thousand, one hundred thirty-nine".