8422131 has 8 divisors (see below), whose sum is σ = 11242944. Its totient is φ = 5608040.

The previous prime is 8422079. The next prime is 8422133. The reversal of 8422131 is 1312248.

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 8422131 - 2⁶ = 8422067 is a prime.

It is a super-2 number, since 2×8422131² = 141864581162322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8 + 4² + 2¹⁵ + 2²³ + 1 + 3⁶ + 1 .

It is a junction number, because it is equal to n+sod(n) for n = 8422098 and 8422107.

It is not an unprimeable number, because it can be changed into a prime (8422133) 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, 3820 + ... + 5606.

It is an arithmetic number, because the mean of its divisors is an integer number (1405368).

Almost surely, 2^8422131 is an apocalyptic number.

8422131 is a deficient number, since it is larger than the sum of its proper divisors (2820813).

8422131 is a wasteful number, since it uses less digits than its factorization.

8422131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361.

The product of its digits is 384, while the sum is 21.

The square root of 8422131 is about 2902.0907980282. The cubic root of 8422131 is about 203.4576375709.

Adding to 8422131 its reverse (1312248), we get a palindrome (9734379).

The spelling of 8422131 in words is "eight million, four hundred twenty-two thousand, one hundred thirty-one".