20367001 has 2 divisors, whose sum is σ = 20367002. Its totient is φ = 20367000.

The previous prime is 20366987. The next prime is 20367023. The reversal of 20367001 is 10076302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16160400 + 4206601 = 4020^2 + 2051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20367001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20367001.

It is not a weakly prime, because it can be changed into another prime (20367091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10183500 + 10183501.

It is an arithmetic number, because the mean of its divisors is an integer number (10183501).

Almost surely, 2^20367001 is an apocalyptic number.

It is an amenable number.

20367001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20367001 is an equidigital number, since it uses as much as digits as its factorization.

20367001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20367001 is about 4512.9813870655. The cubic root of 20367001 is about 273.0920315691.

The spelling of 20367001 in words is "twenty million, three hundred sixty-seven thousand, one".