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1042122229 is a prime number
BaseRepresentation
bin111110000111011…
…000010111110101
32200121221021221121
4332013120113311
54113240402404
6251224143541
734552615141
oct7607302765
92617837847
101042122229
11495283945
12251007bb1
13137b97995
149c594221
1561751e54
hex3e1d85f5

1042122229 has 2 divisors, whose sum is σ = 1042122230. Its totient is φ = 1042122228.

The previous prime is 1042122217. The next prime is 1042122247. The reversal of 1042122229 is 9222212401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 973315204 + 68807025 = 31198^2 + 8295^2 .

It is an emirp because it is prime and its reverse (9222212401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042122229 - 211 = 1042120181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042122209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521061114 + 521061115.

It is an arithmetic number, because the mean of its divisors is an integer number (521061115).

Almost surely, 21042122229 is an apocalyptic number.

It is an amenable number.

1042122229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042122229 is an equidigital number, since it uses as much as digits as its factorization.

1042122229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1042122229 is about 32281.9179882485. The cubic root of 1042122229 is about 1013.8480882383.

The spelling of 1042122229 in words is "one billion, forty-two million, one hundred twenty-two thousand, two hundred twenty-nine".