8420141 has 4 divisors (see below), whose sum is σ = 8497500. Its totient is φ = 8342784.

The previous prime is 8420123. The next prime is 8420149. The reversal of 8420141 is 1410248.

8420141 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2019241 + 6400900 = 1421^2 + 2530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8420141 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 (8420149) 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, 38516 + ... + 38733.

It is an arithmetic number, because the mean of its divisors is an integer number (2124375).

Almost surely, 2^8420141 is an apocalyptic number.

It is an amenable number.

8420141 is a deficient number, since it is larger than the sum of its proper divisors (77359).

8420141 is a wasteful number, since it uses less digits than its factorization.

8420141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77358.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 8420141 is about 2901.7479215121. The cubic root of 8420141 is about 203.4416118330.

Adding to 8420141 its reverse (1410248), we get a palindrome (9830389).

The spelling of 8420141 in words is "eight million, four hundred twenty thousand, one hundred forty-one".