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1223133049 is a prime number
BaseRepresentation
bin100100011100111…
…1000011101111001
310011020112121010001
41020321320131321
510001110224144
6321211553001
742211313365
oct11071703571
93136477101
101223133049
11578476a66
122a175b761
13166533988
14b86322a5
15725a9bd4
hex48e78779

1223133049 has 2 divisors, whose sum is σ = 1223133050. Its totient is φ = 1223133048.

The previous prime is 1223133011. The next prime is 1223133059. The reversal of 1223133049 is 9403313221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1137847824 + 85285225 = 33732^2 + 9235^2 .

It is an emirp because it is prime and its reverse (9403313221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223133049 - 27 = 1223132921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223133059) 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, 611566524 + 611566525.

It is an arithmetic number, because the mean of its divisors is an integer number (611566525).

Almost surely, 21223133049 is an apocalyptic number.

It is an amenable number.

1223133049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223133049 is an equidigital number, since it uses as much as digits as its factorization.

1223133049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1223133049 is about 34973.3191018525. The cubic root of 1223133049 is about 1069.4436357018.

The spelling of 1223133049 in words is "one billion, two hundred twenty-three million, one hundred thirty-three thousand, forty-nine".