41091681 has 8 divisors (see below), whose sum is σ = 54888480. Its totient is φ = 27344672.

The previous prime is 41091679. The next prime is 41091683. The reversal of 41091681 is 18619014.

It is an interprime number because it is at equal distance from previous prime (41091679) and next prime (41091683).

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 41091681 - 2¹ = 41091679 is a prime.

It is a super-2 number, since 2×41091681² = 3377052494811522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (41091683) 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, 10476 + ... + 13853.

It is an arithmetic number, because the mean of its divisors is an integer number (6861060).

Almost surely, 2^41091681 is an apocalyptic number.

It is an amenable number.

41091681 is a deficient number, since it is larger than the sum of its proper divisors (13796799).

41091681 is a wasteful number, since it uses less digits than its factorization.

41091681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24895.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 41091681 is about 6410.2793230873. The cubic root of 41091681 is about 345.0785538412.

The spelling of 41091681 in words is "forty-one million, ninety-one thousand, six hundred eighty-one".