128051910 has 96 divisors (see below), whose sum is σ = 382187520. Its totient is φ = 29139264.

The previous prime is 128051899. The next prime is 128051921. The reversal of 128051910 is 19150821.

It is an interprime number because it is at equal distance from previous prime (128051899) and next prime (128051921).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 276339 + ... + 276801.

It is an arithmetic number, because the mean of its divisors is an integer number (3981120).

Almost surely, 2^128051910 is an apocalyptic number.

128051910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128051910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191093760).

128051910 is an abundant number, since it is smaller than the sum of its proper divisors (254135610).

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

128051910 is a wasteful number, since it uses less digits than its factorization.

128051910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 128051910 is about 11316.0023860019. The cubic root of 128051910 is about 504.0365383563.

The spelling of 128051910 in words is "one hundred twenty-eight million, fifty-one thousand, nine hundred ten".