20247301 has 2 divisors, whose sum is σ = 20247302. Its totient is φ = 20247300.

The previous prime is 20247263. The next prime is 20247313. The reversal of 20247301 is 10374202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18922500 + 1324801 = 4350^2 + 1151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20247301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20247341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123650 + 10123651.

It is an arithmetic number, because the mean of its divisors is an integer number (10123651).

Almost surely, 2^20247301 is an apocalyptic number.

It is an amenable number.

20247301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20247301 is an equidigital number, since it uses as much as digits as its factorization.

20247301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20247301 is about 4499.7001011179. The cubic root of 20247301 is about 272.5559787362. Note that the first 3 decimals are identical.

The spelling of 20247301 in words is "twenty million, two hundred forty-seven thousand, three hundred one".