20482151 has 4 divisors (see below), whose sum is σ = 20770704. Its totient is φ = 20193600.

The previous prime is 20482123. The next prime is 20482157. The reversal of 20482151 is 15128402.

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 20482151 - 2¹⁸ = 20220007 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 (20482157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144170 + ... + 144311.

It is an arithmetic number, because the mean of its divisors is an integer number (5192676).

Almost surely, 2^20482151 is an apocalyptic number.

20482151 is a deficient number, since it is larger than the sum of its proper divisors (288553).

20482151 is an equidigital number, since it uses as much as digits as its factorization.

20482151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288552.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 20482151 is about 4525.7210475238. The cubic root of 20482151 is about 273.6057296701.

The spelling of 20482151 in words is "twenty million, four hundred eighty-two thousand, one hundred fifty-one".