8149881 has 8 divisors (see below), whose sum is σ = 10914880. Its totient is φ = 5409072.

The previous prime is 8149873. The next prime is 8149891. The reversal of 8149881 is 1889418.

It is a happy number.

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

It is not a de Polignac number, because 8149881 - 2³ = 8149873 is a prime.

It is a super-2 number, since 2×8149881² = 132841120628322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8149831) 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, 5245 + ... + 6618.

It is an arithmetic number, because the mean of its divisors is an integer number (1364360).

Almost surely, 2^8149881 is an apocalyptic number.

It is an amenable number.

8149881 is a deficient number, since it is larger than the sum of its proper divisors (2764999).

8149881 is a wasteful number, since it uses less digits than its factorization.

8149881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12095.

The product of its digits is 18432, while the sum is 39.

The square root of 8149881 is about 2854.7996427070. The cubic root of 8149881 is about 201.2412884106.

The spelling of 8149881 in words is "eight million, one hundred forty-nine thousand, eight hundred eighty-one".