20336147 has 8 divisors (see below), whose sum is σ = 22127616. Its totient is φ = 18577152.

The previous prime is 20336089. The next prime is 20336149. The reversal of 20336147 is 74163302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20336147 - 2⁶ = 20336083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20336149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6803 + ... + 9324.

It is an arithmetic number, because the mean of its divisors is an integer number (2765952).

Almost surely, 2^20336147 is an apocalyptic number.

20336147 is a deficient number, since it is larger than the sum of its proper divisors (1791469).

20336147 is a wasteful number, since it uses less digits than its factorization.

20336147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16237.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 20336147 is about 4509.5617303680. The cubic root of 20336147 is about 272.9540593664.

Adding to 20336147 its reverse (74163302), we get a palindrome (94499449).

The spelling of 20336147 in words is "twenty million, three hundred thirty-six thousand, one hundred forty-seven".