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136113893 is a prime number
BaseRepresentation
bin10000001110011…
…10111011100101
3100111010022011022
420013032323211
5234321121033
621301220525
73241643336
oct1007167345
9314108138
10136113893
116a918423
1239701745
1322279586
141411228d
15be3a098
hex81ceee5

136113893 has 2 divisors, whose sum is σ = 136113894. Its totient is φ = 136113892.

The previous prime is 136113881. The next prime is 136113947. The reversal of 136113893 is 398311631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94614529 + 41499364 = 9727^2 + 6442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-136113893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136113293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68056946 + 68056947.

It is an arithmetic number, because the mean of its divisors is an integer number (68056947).

Almost surely, 2136113893 is an apocalyptic number.

It is an amenable number.

136113893 is a deficient number, since it is larger than the sum of its proper divisors (1).

136113893 is an equidigital number, since it uses as much as digits as its factorization.

136113893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 35.

The square root of 136113893 is about 11666.7858898670. The cubic root of 136113893 is about 514.3998324763.

The spelling of 136113893 in words is "one hundred thirty-six million, one hundred thirteen thousand, eight hundred ninety-three".