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10605121 is a prime number
BaseRepresentation
bin101000011101…
…001001000001
3201221210111021
4220131021001
510203330441
61015145441
7156066502
oct50351101
921853437
1010605121
115a9386a
123675281
132274127
1415a0ba9
15de73d1
hexa1d241

10605121 has 2 divisors, whose sum is σ = 10605122. Its totient is φ = 10605120.

The previous prime is 10605113. The next prime is 10605137. The reversal of 10605121 is 12150601.

It is a happy number.

It is an a-pointer prime, because the next prime (10605137) can be obtained adding 10605121 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6195121 + 4410000 = 2489^2 + 2100^2 .

It is a cyclic number.

It is not a de Polignac number, because 10605121 - 23 = 10605113 is a prime.

It is a super-2 number, since 2×106051212 = 224937182849282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10605095 and 10605104.

It is not a weakly prime, because it can be changed into another prime (10602121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5302560 + 5302561.

It is an arithmetic number, because the mean of its divisors is an integer number (5302561).

Almost surely, 210605121 is an apocalyptic number.

It is an amenable number.

10605121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10605121 is an equidigital number, since it uses as much as digits as its factorization.

10605121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 10605121 is about 3256.5504755800. The cubic root of 10605121 is about 219.7042927937.

Adding to 10605121 its reverse (12150601), we get a palindrome (22755722).

The spelling of 10605121 in words is "ten million, six hundred five thousand, one hundred twenty-one".