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1136221 is a prime number
BaseRepresentation
bin100010101011001011101
32010201121021
410111121131
5242324341
640204141
712441412
oct4253135
92121537
101136221
11706729
12469651
1330a228
14218109
151769d1
hex11565d

1136221 has 2 divisors, whose sum is σ = 1136222. Its totient is φ = 1136220.

The previous prime is 1136203. The next prime is 1136227. The reversal of 1136221 is 1226311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 972196 + 164025 = 986^2 + 405^2 .

It is an emirp because it is prime and its reverse (1226311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1136221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1136195 and 1136204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1136227) 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, 568110 + 568111.

It is an arithmetic number, because the mean of its divisors is an integer number (568111).

21136221 is an apocalyptic number.

It is an amenable number.

1136221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136221 is an equidigital number, since it uses as much as digits as its factorization.

1136221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 16.

The square root of 1136221 is about 1065.9366772937. The cubic root of 1136221 is about 104.3488348005.

The spelling of 1136221 in words is "one million, one hundred thirty-six thousand, two hundred twenty-one".