104129421 has 8 divisors (see below), whose sum is σ = 151461024. Its totient is φ = 63108720.

The previous prime is 104129407. The next prime is 104129429. The reversal of 104129421 is 124921401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104129421 - 2⁹ = 104128909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104129391 and 104129400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104129429) 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, 1577686 + ... + 1577751.

It is an arithmetic number, because the mean of its divisors is an integer number (18932628).

Almost surely, 2^104129421 is an apocalyptic number.

104129421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104129421 is a deficient number, since it is larger than the sum of its proper divisors (47331603).

104129421 is a wasteful number, since it uses less digits than its factorization.

104129421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155451.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 104129421 is about 10204.3824408927. The cubic root of 104129421 is about 470.4619285325.

The spelling of 104129421 in words is "one hundred four million, one hundred twenty-nine thousand, four hundred twenty-one".