12136434 has 16 divisors (see below), whose sum is σ = 24789888. Its totient is φ = 3959312.

The previous prime is 12136403. The next prime is 12136441. The reversal of 12136434 is 43463121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21237 + ... + 21800.

It is an arithmetic number, because the mean of its divisors is an integer number (1549368).

Almost surely, 2^12136434 is an apocalyptic number.

12136434 is an abundant number, since it is smaller than the sum of its proper divisors (12653454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12136434 is a wasteful number, since it uses less digits than its factorization.

12136434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43089.

The product of its digits is 1728, while the sum is 24.

The square root of 12136434 is about 3483.7385091307. The cubic root of 12136434 is about 229.8072360945.

Adding to 12136434 its reverse (43463121), we get a palindrome (55599555).

The spelling of 12136434 in words is "twelve million, one hundred thirty-six thousand, four hundred thirty-four".