12128998 has 16 divisors (see below), whose sum is σ = 21464064. Its totient is φ = 5030280.

The previous prime is 12128969. The next prime is 12129017. The reversal of 12128998 is 89982121.

12128998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12128998² = 294225184968008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12128998.

It is a congruent number.

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, 13540 + ... + 14407.

It is an arithmetic number, because the mean of its divisors is an integer number (1341504).

Almost surely, 2^12128998 is an apocalyptic number.

12128998 is a deficient number, since it is larger than the sum of its proper divisors (9335066).

12128998 is a wasteful number, since it uses less digits than its factorization.

12128998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27987.

The product of its digits is 20736, while the sum is 40.

The square root of 12128998 is about 3482.6711013244. The cubic root of 12128998 is about 229.7602921643.

The spelling of 12128998 in words is "twelve million, one hundred twenty-eight thousand, nine hundred ninety-eight".