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194772113 is a prime number
BaseRepresentation
bin10111001101111…
…11110010010001
3111120111110002222
423212333302101
5344330201423
631154350425
74553351504
oct1346776221
9446443088
10194772113
119aa42198
125528b415
1331476893
141bc2113b
15121753c8
hexb9bfc91

194772113 has 2 divisors, whose sum is σ = 194772114. Its totient is φ = 194772112.

The previous prime is 194772079. The next prime is 194772121. The reversal of 194772113 is 311277491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137194369 + 57577744 = 11713^2 + 7588^2 .

It is a cyclic number.

It is not a de Polignac number, because 194772113 - 210 = 194771089 is a prime.

It is a Chen prime.

It is equal to p10805498 and since 194772113 and 10805498 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (194772133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97386056 + 97386057.

It is an arithmetic number, because the mean of its divisors is an integer number (97386057).

Almost surely, 2194772113 is an apocalyptic number.

It is an amenable number.

194772113 is a deficient number, since it is larger than the sum of its proper divisors (1).

194772113 is an equidigital number, since it uses as much as digits as its factorization.

194772113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 35.

The square root of 194772113 is about 13956.0779949096. The cubic root of 194772113 is about 579.6630157022.

The spelling of 194772113 in words is "one hundred ninety-four million, seven hundred seventy-two thousand, one hundred thirteen".