41161681 has 4 divisors (see below), whose sum is σ = 44903664. Its totient is φ = 37419700.

The previous prime is 41161667. The next prime is 41161693. The reversal of 41161681 is 18616114.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41161681 - 2⁷ = 41161553 is a prime.

It is a super-2 number, since 2×41161681² = 3388567965491522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41161381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870975 + ... + 1870996.

It is an arithmetic number, because the mean of its divisors is an integer number (11225916).

Almost surely, 2^41161681 is an apocalyptic number.

It is an amenable number.

41161681 is a deficient number, since it is larger than the sum of its proper divisors (3741983).

41161681 is a wasteful number, since it uses less digits than its factorization.

41161681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741982.

The product of its digits is 1152, while the sum is 28.

The square root of 41161681 is about 6415.7369802697. The cubic root of 41161681 is about 345.2743906852.

Adding to 41161681 its reverse (18616114), we get a palindrome (59777795).

The spelling of 41161681 in words is "forty-one million, one hundred sixty-one thousand, six hundred eighty-one".