2120147 has 2 divisors, whose sum is σ = 2120148. Its totient is φ = 2120146.

The previous prime is 2120143. The next prime is 2120171. The reversal of 2120147 is 7410212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120147 - 2² = 2120143 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2120143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060073 + 1060074.

It is an arithmetic number, because the mean of its divisors is an integer number (1060074).

2^2120147 is an apocalyptic number.

2120147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120147 is an equidigital number, since it uses as much as digits as its factorization.

2120147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2120147 is about 1456.0724569883. The cubic root of 2120147 is about 128.4661348984.

Adding to 2120147 its reverse (7410212), we get a palindrome (9530359).

The spelling of 2120147 in words is "two million, one hundred twenty thousand, one hundred forty-seven".