2152147 has 4 divisors (see below), whose sum is σ = 2157120. Its totient is φ = 2147176.

The previous prime is 2152127. The next prime is 2152153. The reversal of 2152147 is 7412512.

It is a happy number.

2152147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2152147 - 2¹⁵ = 2119379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1768 + ... + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (539280).

2^2152147 is an apocalyptic number.

2152147 is a deficient number, since it is larger than the sum of its proper divisors (4973).

2152147 is an equidigital number, since it uses as much as digits as its factorization.

2152147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4972.

The product of its digits is 560, while the sum is 22.

The square root of 2152147 is about 1467.0197681013. The cubic root of 2152147 is about 129.1092358398.

Adding to 2152147 its reverse (7412512), we get a palindrome (9564659).

The spelling of 2152147 in words is "two million, one hundred fifty-two thousand, one hundred forty-seven".