20155041 has 8 divisors (see below), whose sum is σ = 29859360. Its totient is φ = 13436676.

The previous prime is 20155039. The next prime is 20155073. The reversal of 20155041 is 14055102.

It is not a de Polignac number, because 20155041 - 2¹ = 20155039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20155021) 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 7 ways as a sum of consecutive naturals, for example, 373215 + ... + 373268.

It is an arithmetic number, because the mean of its divisors is an integer number (3732420).

Almost surely, 2^20155041 is an apocalyptic number.

It is an amenable number.

20155041 is a deficient number, since it is larger than the sum of its proper divisors (9704319).

20155041 is an equidigital number, since it uses as much as digits as its factorization.

20155041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746492 (or 746486 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 20155041 is about 4489.4366016239. The cubic root of 20155041 is about 272.1413670060.

It can be divided in two parts, 2015 and 5041, that added together give a square (7056 = 84²).

The spelling of 20155041 in words is "twenty million, one hundred fifty-five thousand, forty-one".