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122074189 is a prime number
BaseRepresentation
bin1110100011010…
…11010001001101
322111201000022021
413101223101031
5222222333224
620040250141
73011420266
oct721532115
9274630267
10122074189
11629a9166
1234a70951
131c3a2063
14122d996d
15aab51e4
hex746b44d

122074189 has 2 divisors, whose sum is σ = 122074190. Its totient is φ = 122074188.

The previous prime is 122074171. The next prime is 122074207. The reversal of 122074189 is 981470221.

It is a balanced prime because it is at equal distance from previous prime (122074171) and next prime (122074207).

It can be written as a sum of positive squares in only one way, i.e., 92968164 + 29106025 = 9642^2 + 5395^2 .

It is an emirp because it is prime and its reverse (981470221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122074189 - 217 = 121943117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122074129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61037094 + 61037095.

It is an arithmetic number, because the mean of its divisors is an integer number (61037095).

Almost surely, 2122074189 is an apocalyptic number.

It is an amenable number.

122074189 is a deficient number, since it is larger than the sum of its proper divisors (1).

122074189 is an equidigital number, since it uses as much as digits as its factorization.

122074189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 122074189 is about 11048.7188850111. The cubic root of 122074189 is about 496.0680797225.

The spelling of 122074189 in words is "one hundred twenty-two million, seventy-four thousand, one hundred eighty-nine".