8142291 has 12 divisors (see below), whose sum is σ = 11802960. Its totient is φ = 5408880.

The previous prime is 8142289. The next prime is 8142307. The reversal of 8142291 is 1922418.

It is not a de Polignac number, because 8142291 - 2¹ = 8142289 is a prime.

8142291 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8142221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1345 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (983580).

Almost surely, 2^8142291 is an apocalyptic number.

8142291 is a deficient number, since it is larger than the sum of its proper divisors (3660669).

8142291 is a wasteful number, since it uses less digits than its factorization.

8142291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226 (or 3223 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 8142291 is about 2853.4699928333. The cubic root of 8142291 is about 201.1787968729.

The spelling of 8142291 in words is "eight million, one hundred forty-two thousand, two hundred ninety-one".