104156993 has 16 divisors (see below), whose sum is σ = 113917440. Its totient is φ = 94867200.

The previous prime is 104156989. The next prime is 104157017. The reversal of 104156993 is 399651401.

It is a cyclic number.

It is not a de Polignac number, because 104156993 - 2² = 104156989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104956993) 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 15 ways as a sum of consecutive naturals, for example, 106121 + ... + 107097.

It is an arithmetic number, because the mean of its divisors is an integer number (7119840).

Almost surely, 2^104156993 is an apocalyptic number.

It is an amenable number.

104156993 is a deficient number, since it is larger than the sum of its proper divisors (9760447).

104156993 is a wasteful number, since it uses less digits than its factorization.

104156993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 104156993 is about 10205.7333396479. The cubic root of 104156993 is about 470.5034487594.

The spelling of 104156993 in words is "one hundred four million, one hundred fifty-six thousand, nine hundred ninety-three".