101646121 has 2 divisors, whose sum is σ = 101646122. Its totient is φ = 101646120.

The previous prime is 101646119. The next prime is 101646133. The reversal of 101646121 is 121646101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93026025 + 8620096 = 9645^2 + 2936^2 .

It is a cyclic number.

It is not a de Polignac number, because 101646121 - 2¹ = 101646119 is a prime.

Together with 101646119, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 101646092 and 101646101.

It is not a weakly prime, because it can be changed into another prime (101646151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50823060 + 50823061.

It is an arithmetic number, because the mean of its divisors is an integer number (50823061).

Almost surely, 2^101646121 is an apocalyptic number.

It is an amenable number.

101646121 is a deficient number, since it is larger than the sum of its proper divisors (1).

101646121 is an equidigital number, since it uses as much as digits as its factorization.

101646121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 101646121 is about 10081.9700951749. The cubic root of 101646121 is about 466.6919071949.

The spelling of 101646121 in words is "one hundred one million, six hundred forty-six thousand, one hundred twenty-one".