8481531 has 8 divisors (see below), whose sum is σ = 11342160. Its totient is φ = 5637632.

The previous prime is 8481511. The next prime is 8481559. The reversal of 8481531 is 1351848.

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 8481531 - 2¹⁵ = 8448763 is a prime.

It is a super-2 number, since 2×8481531² = 143872736207922, which contains 22 as substring.

8481531 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8481511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2946 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (1417770).

Almost surely, 2^8481531 is an apocalyptic number.

8481531 is a deficient number, since it is larger than the sum of its proper divisors (2860629).

8481531 is a wasteful number, since it uses less digits than its factorization.

8481531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8365.

The product of its digits is 3840, while the sum is 30.

The square root of 8481531 is about 2912.3068176276. The cubic root of 8481531 is about 203.9348359726.

The spelling of 8481531 in words is "eight million, four hundred eighty-one thousand, five hundred thirty-one".