104155405 has 8 divisors (see below), whose sum is σ = 126155232. Its totient is φ = 82545168.

The previous prime is 104155391. The next prime is 104155409. The reversal of 104155405 is 504551401.

It is a happy number.

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 104155405 - 2⁹ = 104154893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104155405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104155409) 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, 96807 + ... + 97876.

It is an arithmetic number, because the mean of its divisors is an integer number (15769404).

Almost surely, 2^104155405 is an apocalyptic number.

It is an amenable number.

104155405 is a deficient number, since it is larger than the sum of its proper divisors (21999827).

104155405 is a wasteful number, since it uses less digits than its factorization.

104155405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194795.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 104155405 is about 10205.6555399445. The cubic root of 104155405 is about 470.5010576149.

The spelling of 104155405 in words is "one hundred four million, one hundred fifty-five thousand, four hundred five".