2154241 has 2 divisors, whose sum is σ = 2154242. Its totient is φ = 2154240.

The previous prime is 2154227. The next prime is 2154259. The reversal of 2154241 is 1424512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1635841 + 518400 = 1279^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154241 - 2⁵ = 2154209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2154281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077120 + 1077121.

It is an arithmetic number, because the mean of its divisors is an integer number (1077121).

2^2154241 is an apocalyptic number.

It is an amenable number.

2154241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154241 is an equidigital number, since it uses as much as digits as its factorization.

2154241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 19.

The square root of 2154241 is about 1467.7332863978. The cubic root of 2154241 is about 129.1510959147.

Adding to 2154241 its reverse (1424512), we get a palindrome (3578753).

The spelling of 2154241 in words is "two million, one hundred fifty-four thousand, two hundred forty-one".