2101007 has 2 divisors, whose sum is σ = 2101008.
Its totient is φ = 2101006.
The previous prime is 2101003. The next prime is 2101019. The reversal of 2101007 is 7001012.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 2101007 - 22 = 2101003 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2101003) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050503 + 1050504.
It is an arithmetic number, because the mean of its divisors is an integer number (1050504).
22101007 is an apocalyptic number.
2101007 is a deficient number, since it is larger than the sum of its proper divisors (1).
2101007 is an equidigital number, since it uses as much as digits as its factorization.
2101007 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 2101007 is about 1449.4850809857.
The cubic root of 2101007 is about 128.0783821678.
Adding to 2101007 its reverse (7001012), we get a palindrome (9102019).
The spelling of 2101007 in words is "two million, one hundred one thousand, seven".