20032151 has 4 divisors (see below), whose sum is σ = 20152272. Its totient is φ = 19912032.

The previous prime is 20032141. The next prime is 20032163. The reversal of 20032151 is 15123002.

It is a happy number.

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 20032151 - 2⁶ = 20032087 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 (20032141) 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, 59810 + ... + 60143.

It is an arithmetic number, because the mean of its divisors is an integer number (5038068).

Almost surely, 2^20032151 is an apocalyptic number.

20032151 is a deficient number, since it is larger than the sum of its proper divisors (120121).

20032151 is a wasteful number, since it uses less digits than its factorization.

20032151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120120.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 20032151 is about 4475.7291026156. The cubic root of 20032151 is about 271.5871358565.

Adding to 20032151 its reverse (15123002), we get a palindrome (35155153).

The spelling of 20032151 in words is "twenty million, thirty-two thousand, one hundred fifty-one".