104640651 has 12 divisors (see below), whose sum is σ = 154834680. Its totient is φ = 68058720.

The previous prime is 104640637. The next prime is 104640677. The reversal of 104640651 is 156046401.

104640651 is a `hidden beast` number, since 1 + 0 + 4 + 6 + 4 + 0 + 651 = 666.

It is not a de Polignac number, because 104640651 - 2⁹ = 104640139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104640691) 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 11 ways as a sum of consecutive naturals, for example, 141421 + ... + 142158.

It is an arithmetic number, because the mean of its divisors is an integer number (12902890).

Almost surely, 2^104640651 is an apocalyptic number.

104640651 is a deficient number, since it is larger than the sum of its proper divisors (50194029).

104640651 is a wasteful number, since it uses less digits than its factorization.

104640651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283626 (or 283623 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 104640651 is about 10229.4013021291. The cubic root of 104640651 is about 471.2305928633.

The spelling of 104640651 in words is "one hundred four million, six hundred forty thousand, six hundred fifty-one".