1306128 has 20 divisors (see below), whose sum is σ = 3374288. Its totient is φ = 435360.

The previous prime is 1306121. The next prime is 1306133. The reversal of 1306128 is 8216031.

It is not an unprimeable number, because it can be changed into a prime (1306121) 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, 13558 + ... + 13653.

2^1306128 is an apocalyptic number.

It is an amenable number.

1306128 is an abundant number, since it is smaller than the sum of its proper divisors (2068160).

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

1306128 is a wasteful number, since it uses less digits than its factorization.

1306128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27222 (or 27216 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1306128 is about 1142.8595714260. The cubic root of 1306128 is about 109.3105081574.

Subtracting 1306128 from its reverse (8216031), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 1306128 in words is "one million, three hundred six thousand, one hundred twenty-eight".