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2121017 is a prime number
BaseRepresentation
bin1000000101110100111001
310222202111012
420011310321
51020333032
6113243305
724012503
oct10056471
93882435
102121017
111219608
12863535
13593552
143d2d73
152bd6b2
hex205d39

2121017 has 2 divisors, whose sum is σ = 2121018. Its totient is φ = 2121016.

The previous prime is 2121011. The next prime is 2121023. The reversal of 2121017 is 7101212.

It is a balanced prime because it is at equal distance from previous prime (2121011) and next prime (2121023).

It can be written as a sum of positive squares in only one way, i.e., 1229881 + 891136 = 1109^2 + 944^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121017 - 212 = 2116921 is a prime.

It is a super-2 number, since 2×21210172 = 8997426228578, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120992 and 2121010.

It is not a weakly prime, because it can be changed into another prime (2121011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060508 + 1060509.

It is an arithmetic number, because the mean of its divisors is an integer number (1060509).

22121017 is an apocalyptic number.

It is an amenable number.

2121017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121017 is an equidigital number, since it uses as much as digits as its factorization.

2121017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 2121017 is about 1456.3711752160. The cubic root of 2121017 is about 128.4837044747.

Adding to 2121017 its reverse (7101212), we get a palindrome (9222229).

The spelling of 2121017 in words is "two million, one hundred twenty-one thousand, seventeen".