20247341 has 2 divisors, whose sum is σ = 20247342. Its totient is φ = 20247340.

The previous prime is 20247319. The next prime is 20247343. The reversal of 20247341 is 14374202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15642025 + 4605316 = 3955^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 20247341 - 2¹⁸ = 19985197 is a prime.

Together with 20247343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20247343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123670 + 10123671.

It is an arithmetic number, because the mean of its divisors is an integer number (10123671).

Almost surely, 2^20247341 is an apocalyptic number.

It is an amenable number.

20247341 is a deficient number, since it is larger than the sum of its proper divisors (1).

20247341 is an equidigital number, since it uses as much as digits as its factorization.

20247341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20247341 is about 4499.7045458563. The cubic root of 20247341 is about 272.5561582207.

The spelling of 20247341 in words is "twenty million, two hundred forty-seven thousand, three hundred forty-one".