8131922 has 8 divisors (see below), whose sum is σ = 12240396. Its totient is φ = 4051792.

The previous prime is 8131901. The next prime is 8131927. The reversal of 8131922 is 2291318.

It can be written as a sum of positive squares in 2 ways, for example, as 8128201 + 3721 = 2851^2 + 61^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8131922² = 132256310828168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8131891 and 8131900.

It is not an unprimeable number, because it can be changed into a prime (8131927) 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, 6353 + ... + 7524.

Almost surely, 2^8131922 is an apocalyptic number.

8131922 is a deficient number, since it is larger than the sum of its proper divisors (4108474).

8131922 is a wasteful number, since it uses less digits than its factorization.

8131922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14172.

The product of its digits is 864, while the sum is 26.

The square root of 8131922 is about 2851.6525033741. The cubic root of 8131922 is about 201.0933619066.

The spelling of 8131922 in words is "eight million, one hundred thirty-one thousand, nine hundred twenty-two".