12128502 has 32 divisors (see below), whose sum is σ = 25242624. Its totient is φ = 3880800.

The previous prime is 12128483. The next prime is 12128507. The reversal of 12128502 is 20582121.

It is a happy number.

12128502 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12128507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36477 + ... + 36807.

It is an arithmetic number, because the mean of its divisors is an integer number (788832).

Almost surely, 2^12128502 is an apocalyptic number.

12128502 is an abundant number, since it is smaller than the sum of its proper divisors (13114122).

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

12128502 is a wasteful number, since it uses less digits than its factorization.

12128502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 12128502 is about 3482.5998908861. The cubic root of 12128502 is about 229.7571602030.

The spelling of 12128502 in words is "twelve million, one hundred twenty-eight thousand, five hundred two".