128731010 has 16 divisors (see below), whose sum is σ = 233542656. Its totient is φ = 51086448.

The previous prime is 128730997. The next prime is 128731013. The reversal of 128731010 is 10137821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (128731013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49412 + ... + 51951.

It is an arithmetic number, because the mean of its divisors is an integer number (14596416).

Almost surely, 2^128731010 is an apocalyptic number.

128731010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128731010 is a deficient number, since it is larger than the sum of its proper divisors (104811646).

128731010 is a wasteful number, since it uses less digits than its factorization.

128731010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101497.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 128731010 is about 11345.9688876711. The cubic root of 128731010 is about 504.9259898729.

Adding to 128731010 its reverse (10137821), we get a palindrome (138868831).

The spelling of 128731010 in words is "one hundred twenty-eight million, seven hundred thirty-one thousand, ten".