8142969 has 16 divisors (see below), whose sum is σ = 11208960. Its totient is φ = 5255040.

The previous prime is 8142929. The next prime is 8142971. The reversal of 8142969 is 9692418.

It is a de Polignac number, because none of the positive numbers 2^k-8142969 is a prime.

It is a super-2 number, since 2×8142969² = 132615888269922, which contains 22 as substring.

8142969 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8142929) 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 15 ways as a sum of consecutive naturals, for example, 29259 + ... + 29535.

It is an arithmetic number, because the mean of its divisors is an integer number (700560).

Almost surely, 2^8142969 is an apocalyptic number.

It is an amenable number.

8142969 is a deficient number, since it is larger than the sum of its proper divisors (3065991).

8142969 is a wasteful number, since it uses less digits than its factorization.

8142969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560.

The product of its digits is 31104, while the sum is 39.

The square root of 8142969 is about 2853.5887930814. The cubic root of 8142969 is about 201.1843807001.

The spelling of 8142969 in words is "eight million, one hundred forty-two thousand, nine hundred sixty-nine".