20512141 has 8 divisors (see below), whose sum is σ = 22305920. Its totient is φ = 18749232.

The previous prime is 20512139. The next prime is 20512169. The reversal of 20512141 is 14121502.

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 20512141 - 2¹ = 20512139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20512181) 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, 6321 + ... + 8998.

It is an arithmetic number, because the mean of its divisors is an integer number (2788240).

Almost surely, 2^20512141 is an apocalyptic number.

It is an amenable number.

20512141 is a deficient number, since it is larger than the sum of its proper divisors (1793779).

20512141 is a wasteful number, since it uses less digits than its factorization.

20512141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15435.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 20512141 is about 4529.0331197729. The cubic root of 20512141 is about 273.7392025376.

Adding to 20512141 its reverse (14121502), we get a palindrome (34633643).

The spelling of 20512141 in words is "twenty million, five hundred twelve thousand, one hundred forty-one".