128301747 has 24 divisors (see below), whose sum is σ = 199717056. Its totient is φ = 73050768.

The previous prime is 128301739. The next prime is 128301749. The reversal of 128301747 is 747103821.

It is a happy number.

It is not a de Polignac number, because 128301747 - 2³ = 128301739 is a prime.

It is a super-2 number, since 2×128301747² = 32922676566504018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128301749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43708 + ... + 46550.

It is an arithmetic number, because the mean of its divisors is an integer number (8321544).

Almost surely, 2^128301747 is an apocalyptic number.

128301747 is a deficient number, since it is larger than the sum of its proper divisors (71415309).

128301747 is a wasteful number, since it uses less digits than its factorization.

128301747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167 (or 3160 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 128301747 is about 11327.0361083560. The cubic root of 128301747 is about 504.3641272960.

The spelling of 128301747 in words is "one hundred twenty-eight million, three hundred one thousand, seven hundred forty-seven".