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1045321 is a prime number
BaseRepresentation
bin11111111001101001001
31222002220121
43333031021
5231422241
634223241
711612404
oct3771511
91862817
101045321
11654402
12424b21
132a7a44
141d2d3b
15159ad1
hexff349

1045321 has 2 divisors, whose sum is σ = 1045322. Its totient is φ = 1045320.

The previous prime is 1045309. The next prime is 1045349. The reversal of 1045321 is 1235401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 608400 + 436921 = 780^2 + 661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045321 - 27 = 1045193 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1045295 and 1045304.

It is not a weakly prime, because it can be changed into another prime (1045391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522660 + 522661.

It is an arithmetic number, because the mean of its divisors is an integer number (522661).

21045321 is an apocalyptic number.

It is an amenable number.

1045321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045321 is an equidigital number, since it uses as much as digits as its factorization.

1045321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1045321 is about 1022.4094091899. The cubic root of 1045321 is about 101.4884356744.

The spelling of 1045321 in words is "one million, forty-five thousand, three hundred twenty-one".