2150717 has 2 divisors, whose sum is σ = 2150718. Its totient is φ = 2150716.

The previous prime is 2150713. The next prime is 2150719. The reversal of 2150717 is 7170512.

It is a happy number.

2150717 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1999396 + 151321 = 1414^2 + 389^2 .

It is a cyclic number.

It is not a de Polignac number, because 2150717 - 2² = 2150713 is a prime.

It is a super-2 number, since 2×2150717² = 9251167228178, which contains 22 as substring.

Together with 2150719, 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 = 2150692 and 2150701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2150713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075358 + 1075359.

It is an arithmetic number, because the mean of its divisors is an integer number (1075359).

2^2150717 is an apocalyptic number.

It is an amenable number.

2150717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2150717 is an equidigital number, since it uses as much as digits as its factorization.

2150717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 2150717 is about 1466.5323044516. The cubic root of 2150717 is about 129.0806338416.

The spelling of 2150717 in words is "two million, one hundred fifty thousand, seven hundred seventeen".