2148529 has 2 divisors, whose sum is σ = 2148530. Its totient is φ = 2148528.

The previous prime is 2148527. The next prime is 2148533. The reversal of 2148529 is 9258412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2146225 + 2304 = 1465^2 + 48^2 .

It is a cyclic number.

It is not a de Polignac number, because 2148529 - 2¹ = 2148527 is a prime.

Together with 2148527, it forms a pair of twin primes.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2148529.

It is not a weakly prime, because it can be changed into another prime (2148527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074264 + 1074265.

It is an arithmetic number, because the mean of its divisors is an integer number (1074265).

2^2148529 is an apocalyptic number.

It is an amenable number.

2148529 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148529 is an equidigital number, since it uses as much as digits as its factorization.

2148529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 2148529 is about 1465.7861371974. The cubic root of 2148529 is about 129.0368462340.

The spelling of 2148529 in words is "two million, one hundred forty-eight thousand, five hundred twenty-nine".