20514267 has 6 divisors (see below), whose sum is σ = 29631732. Its totient is φ = 13676172.

The previous prime is 20514259. The next prime is 20514271. The reversal of 20514267 is 76241502.

It is not a de Polignac number, because 20514267 - 2³ = 20514259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20514267.

It is not an unprimeable number, because it can be changed into a prime (20513267) 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 in 5 ways as a sum of consecutive naturals, for example, 1139673 + ... + 1139690.

It is an arithmetic number, because the mean of its divisors is an integer number (4938622).

Almost surely, 2^20514267 is an apocalyptic number.

20514267 is a deficient number, since it is larger than the sum of its proper divisors (9117465).

20514267 is a wasteful number, since it uses less digits than its factorization.

20514267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279369 (or 2279366 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 20514267 is about 4529.2678216242. The cubic root of 20514267 is about 273.7486595293.

Adding to 20514267 its reverse (76241502), we get a palindrome (96755769).

It can be divided in two parts, 205142 and 67, that added together give a square (205209 = 453²).

The spelling of 20514267 in words is "twenty million, five hundred fourteen thousand, two hundred sixty-seven".