20514367 has 4 divisors (see below), whose sum is σ = 21406320. Its totient is φ = 19622416.

The previous prime is 20514341. The next prime is 20514371. The reversal of 20514367 is 76341502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20514367 - 2¹⁵ = 20481599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20515367) 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 3 ways as a sum of consecutive naturals, for example, 445942 + ... + 445987.

It is an arithmetic number, because the mean of its divisors is an integer number (5351580).

Almost surely, 2^20514367 is an apocalyptic number.

20514367 is a deficient number, since it is larger than the sum of its proper divisors (891953).

20514367 is an equidigital number, since it uses as much as digits as its factorization.

20514367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891952.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 20514367 is about 4529.2788609226. The cubic root of 20514367 is about 273.7491043388.

Adding to 20514367 its reverse (76341502), we get a palindrome (96855869).

The spelling of 20514367 in words is "twenty million, five hundred fourteen thousand, three hundred sixty-seven".