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133465081 is a prime number
BaseRepresentation
bin1111111010010…
…00001111111001
3100022010201200011
413331020033321
5233131340311
621124341521
73210302011
oct775101771
9308121604
10133465081
1169379322
12388448a1
132185ca29
1413a22c41
15bab5321
hex7f483f9

133465081 has 2 divisors, whose sum is σ = 133465082. Its totient is φ = 133465080.

The previous prime is 133465069. The next prime is 133465103. The reversal of 133465081 is 180564331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133194681 + 270400 = 11541^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 133465081 - 27 = 133464953 is a prime.

It is a super-2 number, since 2×1334650812 = 35625855692673122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133465051) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66732540 + 66732541.

It is an arithmetic number, because the mean of its divisors is an integer number (66732541).

Almost surely, 2133465081 is an apocalyptic number.

It is an amenable number.

133465081 is a deficient number, since it is larger than the sum of its proper divisors (1).

133465081 is an equidigital number, since it uses as much as digits as its factorization.

133465081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 133465081 is about 11552.7088165503. The cubic root of 133465081 is about 511.0411653373.

The spelling of 133465081 in words is "one hundred thirty-three million, four hundred sixty-five thousand, eighty-one".