8129481 has 8 divisors (see below), whose sum is σ = 10944960. Its totient is φ = 5366832.

The previous prime is 8129479. The next prime is 8129489. The reversal of 8129481 is 1849218.

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

It is not a de Polignac number, because 8129481 - 2¹ = 8129479 is a prime.

It is a super-2 number, since 2×8129481² = 132176922658722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8129489) 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, 12846 + ... + 13463.

It is an arithmetic number, because the mean of its divisors is an integer number (1368120).

Almost surely, 2^8129481 is an apocalyptic number.

It is an amenable number.

8129481 is a deficient number, since it is larger than the sum of its proper divisors (2815479).

8129481 is a wasteful number, since it uses less digits than its factorization.

8129481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26415.

The product of its digits is 4608, while the sum is 33.

The square root of 8129481 is about 2851.2244738007. The cubic root of 8129481 is about 201.0732388238.

The spelling of 8129481 in words is "eight million, one hundred twenty-nine thousand, four hundred eighty-one".