20332151 has 8 divisors (see below), whose sum is σ = 23531520. Its totient is φ = 17206488.

The previous prime is 20332133. The next prime is 20332159. The reversal of 20332151 is 15123302.

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 20332151 - 2⁶ = 20332087 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 (20332159) 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, 17831 + ... + 18936.

It is an arithmetic number, because the mean of its divisors is an integer number (2941440).

Almost surely, 2^20332151 is an apocalyptic number.

20332151 is a deficient number, since it is larger than the sum of its proper divisors (3199369).

20332151 is an equidigital number, since it uses as much as digits as its factorization.

20332151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36853.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 20332151 is about 4509.1186500246. The cubic root of 20332151 is about 272.9361799410.

Adding to 20332151 its reverse (15123302), we get a palindrome (35455453).

The spelling of 20332151 in words is "twenty million, three hundred thirty-two thousand, one hundred fifty-one".