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BaseRepresentation
bin100001100110110101101
32001221121021
410030312231
5240214404
635334141
712234403
oct4146655
92057537
101101229
11692408
12451351
132c731c
14209473
1516b454

1101229 has 2 divisors, whose sum is σ = 1101230. Its totient is φ = 1101228.

The previous prime is 1101211. The next prime is 1101253. The reversal of 1101229 is 9221011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010025 + 91204 = 1005^2 + 302^2 .

It is an emirp because it is prime and its reverse (9221011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101229 - 211 = 1099181 is a prime.

1101229 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550614 + 550615.

It is an arithmetic number, because the mean of its divisors is an integer number (550615).

21101229 is an apocalyptic number.

It is an amenable number.

1101229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101229 is an equidigital number, since it uses as much as digits as its factorization.

1101229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1101229 is about 1049.3945873693. The cubic root of 1101229 is about 103.2664418508.

The spelling of 1101229 in words is "one million, one hundred one thousand, two hundred twenty-nine".