20153329 has 8 divisors (see below), whose sum is σ = 23348480. Its totient is φ = 17037216.

The previous prime is 20153323. The next prime is 20153339. The reversal of 20153329 is 92335102.

It is a happy number.

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

It is not a de Polignac number, because 20153329 - 2³ = 20153321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20153321) 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 7 ways as a sum of consecutive naturals, for example, 19209 + ... + 20230.

It is an arithmetic number, because the mean of its divisors is an integer number (2918560).

Almost surely, 2^20153329 is an apocalyptic number.

It is an amenable number.

20153329 is a deficient number, since it is larger than the sum of its proper divisors (3195151).

20153329 is an equidigital number, since it uses as much as digits as its factorization.

20153329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39519.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 20153329 is about 4489.2459277701. The cubic root of 20153329 is about 272.1336614199.

The spelling of 20153329 in words is "twenty million, one hundred fifty-three thousand, three hundred twenty-nine".