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2120875499 is a prime number
BaseRepresentation
bin111111001101001…
…1111110111101011
312110210210122020102
41332122133313223
513320421003444
6550241420015
7103362100331
oct17632376753
95423718212
102120875499
119991a7176
124b233a60b
1327a519922
14161961b51
15c62dc84e
hex7e69fdeb

2120875499 has 2 divisors, whose sum is σ = 2120875500. Its totient is φ = 2120875498.

The previous prime is 2120875487. The next prime is 2120875501. The reversal of 2120875499 is 9945780212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120875499 - 28 = 2120875243 is a prime.

It is a super-2 number, since 2×21208754992 = 8996225764516998002, which contains 22 as substring.

Together with 2120875501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2120875469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060437749 + 1060437750.

It is an arithmetic number, because the mean of its divisors is an integer number (1060437750).

Almost surely, 22120875499 is an apocalyptic number.

2120875499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120875499 is an equidigital number, since it uses as much as digits as its factorization.

2120875499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 2120875499 is about 46052.9640631306. The cubic root of 2120875499 is about 1284.8084720120.

The spelling of 2120875499 in words is "two billion, one hundred twenty million, eight hundred seventy-five thousand, four hundred ninety-nine".