20129341 has 4 divisors (see below), whose sum is σ = 21188800. Its totient is φ = 19069884.

The previous prime is 20129339. The next prime is 20129353. The reversal of 20129341 is 14392102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20129341 - 2¹ = 20129339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20129311) 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, 529701 + ... + 529738.

It is an arithmetic number, because the mean of its divisors is an integer number (5297200).

Almost surely, 2^20129341 is an apocalyptic number.

It is an amenable number.

20129341 is a deficient number, since it is larger than the sum of its proper divisors (1059459).

20129341 is a wasteful number, since it uses less digits than its factorization.

20129341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059458.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20129341 is about 4486.5734140879. The cubic root of 20129341 is about 272.0256472716.

The spelling of 20129341 in words is "twenty million, one hundred twenty-nine thousand, three hundred forty-one".