20071365 has 16 divisors (see below), whose sum is σ = 32721408. Its totient is φ = 10502336.

The previous prime is 20071361. The next prime is 20071367. The reversal of 20071365 is 56317002.

It is a cyclic number.

It is not a de Polignac number, because 20071365 - 2² = 20071361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20071361) 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 in 15 ways as a sum of consecutive naturals, for example, 11829 + ... + 13418.

It is an arithmetic number, because the mean of its divisors is an integer number (2045088).

Almost surely, 2^20071365 is an apocalyptic number.

It is an amenable number.

20071365 is a deficient number, since it is larger than the sum of its proper divisors (12650043).

20071365 is a wasteful number, since it uses less digits than its factorization.

20071365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25308.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 20071365 is about 4480.1076995983. The cubic root of 20071365 is about 271.7642357624.

Adding to 20071365 its reverse (56317002), we get a palindrome (76388367).

The spelling of 20071365 in words is "twenty million, seventy-one thousand, three hundred sixty-five".