2159147 has 2 divisors, whose sum is σ = 2159148. Its totient is φ = 2159146.

The previous prime is 2159093. The next prime is 2159177. The reversal of 2159147 is 7419512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2159147 - 2⁶ = 2159083 is a prime.

It is not a weakly prime, because it can be changed into another prime (2159177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1079573 + 1079574.

It is an arithmetic number, because the mean of its divisors is an integer number (1079574).

2^2159147 is an apocalyptic number.

2159147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2159147 is an equidigital number, since it uses as much as digits as its factorization.

2159147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 29.

The square root of 2159147 is about 1469.4036205209. The cubic root of 2159147 is about 129.2490631171.

The spelling of 2159147 in words is "two million, one hundred fifty-nine thousand, one hundred forty-seven".