12428154 has 20 divisors (see below), whose sum is σ = 27848634. Its totient is φ = 4142664.

The previous prime is 12428137. The next prime is 12428191. The reversal of 12428154 is 45182421.

It can be written as a sum of positive squares in only one way, i.e., 9090225 + 3337929 = 3015^2 + 1827^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38197 + ... + 38520.

Almost surely, 2^12428154 is an apocalyptic number.

12428154 is an abundant number, since it is smaller than the sum of its proper divisors (15420480).

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

12428154 is an equidigital number, since it uses as much as digits as its factorization.

12428154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76731 (or 76722 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 12428154 is about 3525.3587051533. The cubic root of 12428154 is about 231.6339476131.

The spelling of 12428154 in words is "twelve million, four hundred twenty-eight thousand, one hundred fifty-four".