4149681 has 8 divisors (see below), whose sum is σ = 5549760. Its totient is φ = 2758032.

The previous prime is 4149679. The next prime is 4149703. The reversal of 4149681 is 1869414.

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

It is not a de Polignac number, because 4149681 - 2¹ = 4149679 is a prime.

It is a super-2 number, since 2×4149681² = 34439704803522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4149601) 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, 850 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (693720).

Almost surely, 2^4149681 is an apocalyptic number.

It is an amenable number.

4149681 is a deficient number, since it is larger than the sum of its proper divisors (1400079).

4149681 is a wasteful number, since it uses less digits than its factorization.

4149681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215.

The product of its digits is 6912, while the sum is 33.

The square root of 4149681 is about 2037.0765817710. The cubic root of 4149681 is about 160.6959398882.

The spelling of 4149681 in words is "four million, one hundred forty-nine thousand, six hundred eighty-one".