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136111849 is a prime number
BaseRepresentation
bin10000001110011…
…10011011101001
3100111010012100121
420013032123221
5234321034344
621301203241
73241634356
oct1007163351
9314105317
10136111849
116a916935
1239700521
1322278673
141411162d
15be39684
hex81ce6e9

136111849 has 2 divisors, whose sum is σ = 136111850. Its totient is φ = 136111848.

The previous prime is 136111817. The next prime is 136111873. The reversal of 136111849 is 948111631.

136111849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126157824 + 9954025 = 11232^2 + 3155^2 .

It is an emirp because it is prime and its reverse (948111631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136111849 - 25 = 136111817 is a prime.

It is not a weakly prime, because it can be changed into another prime (136111889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68055924 + 68055925.

It is an arithmetic number, because the mean of its divisors is an integer number (68055925).

Almost surely, 2136111849 is an apocalyptic number.

It is an amenable number.

136111849 is a deficient number, since it is larger than the sum of its proper divisors (1).

136111849 is an equidigital number, since it uses as much as digits as its factorization.

136111849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 34.

The square root of 136111849 is about 11666.6982904333. The cubic root of 136111849 is about 514.3972575774.

The spelling of 136111849 in words is "one hundred thirty-six million, one hundred eleven thousand, eight hundred forty-nine".