12254129 has 4 divisors (see below), whose sum is σ = 12298020. Its totient is φ = 12210240.

The previous prime is 12254113. The next prime is 12254131. The reversal of 12254129 is 92145221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4000000 + 8254129 = 2000^2 + 2873^2 .

It is a cyclic number.

It is not a de Polignac number, because 12254129 - 2⁴ = 12254113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12254098 and 12254107.

It is not an unprimeable number, because it can be changed into a prime (12254189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21524 + ... + 22085.

It is an arithmetic number, because the mean of its divisors is an integer number (3074505).

Almost surely, 2^12254129 is an apocalyptic number.

It is an amenable number.

12254129 is a deficient number, since it is larger than the sum of its proper divisors (43891).

12254129 is an equidigital number, since it uses as much as digits as its factorization.

12254129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43890.

The product of its digits is 1440, while the sum is 26.

The square root of 12254129 is about 3500.5898074467. The cubic root of 12254129 is about 230.5477116819.

The spelling of 12254129 in words is "twelve million, two hundred fifty-four thousand, one hundred twenty-nine".