12429105 has 24 divisors (see below), whose sum is σ = 21538368. Its totient is φ = 6117696.

The previous prime is 12429073. The next prime is 12429121. The reversal of 12429105 is 50192421.

It is not a de Polignac number, because 12429105 - 2⁵ = 12429073 is a prime.

It is a super-2 number, since 2×12429105² = 308965302202050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84 + ... + 4986.

It is an arithmetic number, because the mean of its divisors is an integer number (897432).

Almost surely, 2^12429105 is an apocalyptic number.

12429105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12429105 is a deficient number, since it is larger than the sum of its proper divisors (9109263).

12429105 is a wasteful number, since it uses less digits than its factorization.

12429105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937 (or 4924 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 12429105 is about 3525.4935824647. The cubic root of 12429105 is about 231.6398556577.

The spelling of 12429105 in words is "twelve million, four hundred twenty-nine thousand, one hundred five".