12137828 has 6 divisors (see below), whose sum is σ = 21241206. Its totient is φ = 6068912.

The previous prime is 12137821. The next prime is 12137831. The reversal of 12137828 is 82873121.

12137828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9012004 + 3125824 = 3002^2 + 1768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12137794 and 12137803.

It is not an unprimeable number, because it can be changed into a prime (12137821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1517225 + ... + 1517232.

It is an arithmetic number, because the mean of its divisors is an integer number (3540201).

Almost surely, 2^12137828 is an apocalyptic number.

It is an amenable number.

12137828 is a deficient number, since it is larger than the sum of its proper divisors (9103378).

12137828 is a wasteful number, since it uses less digits than its factorization.

12137828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034461 (or 3034459 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 12137828 is about 3483.9385758076. The cubic root of 12137828 is about 229.8160343687.

The spelling of 12137828 in words is "twelve million, one hundred thirty-seven thousand, eight hundred twenty-eight".