104151681 has 12 divisors (see below), whose sum is σ = 151591440. Its totient is φ = 68903640.

The previous prime is 104151679. The next prime is 104151737. The reversal of 104151681 is 186151401.

It is not a de Polignac number, because 104151681 - 2¹ = 104151679 is a prime.

It is a super-2 number, since 2×104151681² = 21695145310251522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104151631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42991 + ... + 45348.

It is an arithmetic number, because the mean of its divisors is an integer number (12632620).

Almost surely, 2^104151681 is an apocalyptic number.

It is an amenable number.

104151681 is a deficient number, since it is larger than the sum of its proper divisors (47439759).

104151681 is a wasteful number, since it uses less digits than its factorization.

104151681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88476 (or 88473 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 104151681 is about 10205.4730904549. The cubic root of 104151681 is about 470.4954500748.

The spelling of 104151681 in words is "one hundred four million, one hundred fifty-one thousand, six hundred eighty-one".