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107021 is a prime number

107021 has 2 divisors, whose sum is σ = 107022. Its totient is φ = 107020.

The previous prime is 106993. The next prime is 107033. The reversal of 107021 is 120701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62500 + 44521 = 250^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 107021 - 26 = 106957 is a prime.

It is a super-2 number, since 2×1070212 = 22906988882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 106993 and 107011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53510 + 53511.

It is an arithmetic number, because the mean of its divisors is an integer number (53511).

2107021 is an apocalyptic number.

It is an amenable number.

107021 is a deficient number, since it is larger than the sum of its proper divisors (1).

107021 is an equidigital number, since it uses as much as digits as its factorization.

107021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 107021 is about 327.1406425377. The cubic root of 107021 is about 47.4776995966.

Adding to 107021 its reverse (120701), we get a palindrome (227722).

The spelling of 107021 in words is "one hundred seven thousand, twenty-one", and thus it is an iban number.