12125434 has 4 divisors (see below), whose sum is σ = 18188154. Its totient is φ = 6062716.

The previous prime is 12125423. The next prime is 12125447. The reversal of 12125434 is 43452121.

12125434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43452121 = 29 ⋅1498349.

It can be written as a sum of positive squares in only one way, i.e., 8105409 + 4020025 = 2847^2 + 2005^2 .

It is a super-2 number, since 2×12125434² = 294052299376712, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3031357 + ... + 3031360.

Almost surely, 2^12125434 is an apocalyptic number.

12125434 is a deficient number, since it is larger than the sum of its proper divisors (6062720).

12125434 is an equidigital number, since it uses as much as digits as its factorization.

12125434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6062719.

The product of its digits is 960, while the sum is 22.

The square root of 12125434 is about 3482.1593875066. The cubic root of 12125434 is about 229.7377856088.

Adding to 12125434 its reverse (43452121), we get a palindrome (55577555).

The spelling of 12125434 in words is "twelve million, one hundred twenty-five thousand, four hundred thirty-four".