20468141 has 4 divisors (see below), whose sum is σ = 21021372. Its totient is φ = 19914912.

The previous prime is 20468117. The next prime is 20468159. The reversal of 20468141 is 14186402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14186402 = 2 ⋅7093201.

It can be written as a sum of positive squares in 2 ways, for example, as 14092516 + 6375625 = 3754^2 + 2525^2 .

It is a cyclic number.

It is not a de Polignac number, because 20468141 - 2²² = 16273837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20468141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20468191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276560 + ... + 276633.

It is an arithmetic number, because the mean of its divisors is an integer number (5255343).

Almost surely, 2^20468141 is an apocalyptic number.

It is an amenable number.

20468141 is a deficient number, since it is larger than the sum of its proper divisors (553231).

20468141 is an equidigital number, since it uses as much as digits as its factorization.

20468141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553230.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 20468141 is about 4524.1729630950. The cubic root of 20468141 is about 273.5433324054.

The spelling of 20468141 in words is "twenty million, four hundred sixty-eight thousand, one hundred forty-one".