2157341 has 2 divisors, whose sum is σ = 2157342. Its totient is φ = 2157340.

The previous prime is 2157329. The next prime is 2157343. The reversal of 2157341 is 1437512.

2157341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1428025 + 729316 = 1195^2 + 854^2 .

It is a cyclic number.

It is not a de Polignac number, because 2157341 - 2⁶ = 2157277 is a prime.

It is a Sophie Germain prime.

Together with 2157343, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2157343) 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 as a sum of consecutive naturals, namely, 1078670 + 1078671.

It is an arithmetic number, because the mean of its divisors is an integer number (1078671).

2^2157341 is an apocalyptic number.

It is an amenable number.

2157341 is a deficient number, since it is larger than the sum of its proper divisors (1).

2157341 is an equidigital number, since it uses as much as digits as its factorization.

2157341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 23.

The square root of 2157341 is about 1468.7889569302. The cubic root of 2157341 is about 129.2130166414.

It can be divided in two parts, 2157 and 341, that multiplied together give a palindrome (735537).

The spelling of 2157341 in words is "two million, one hundred fifty-seven thousand, three hundred forty-one".