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133118879 is a prime number
BaseRepresentation
bin1111110111100…
…11101110011111
3100021111010202212
413323303232133
5233034301004
621113111035
73204330455
oct773635637
9307433685
10133118879
1169162203
12386b847b
132176b28a
14139729d5
15ba4796e
hex7ef3b9f

133118879 has 2 divisors, whose sum is σ = 133118880. Its totient is φ = 133118878.

The previous prime is 133118849. The next prime is 133118893. The reversal of 133118879 is 978811331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133118879 - 224 = 116341663 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133118819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66559439 + 66559440.

It is an arithmetic number, because the mean of its divisors is an integer number (66559440).

Almost surely, 2133118879 is an apocalyptic number.

133118879 is a deficient number, since it is larger than the sum of its proper divisors (1).

133118879 is an equidigital number, since it uses as much as digits as its factorization.

133118879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 41.

The square root of 133118879 is about 11537.7155017794. The cubic root of 133118879 is about 510.5989106541.

The spelling of 133118879 in words is "one hundred thirty-three million, one hundred eighteen thousand, eight hundred seventy-nine".