128141850 has 48 divisors (see below), whose sum is σ = 321104448. Its totient is φ = 33815040.

The previous prime is 128141837. The next prime is 128141873. The reversal of 128141850 is 58141821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10147 + ... + 18953.

It is an arithmetic number, because the mean of its divisors is an integer number (6689676).

Almost surely, 2^128141850 is an apocalyptic number.

128141850 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 128141850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160552224).

128141850 is an abundant number, since it is smaller than the sum of its proper divisors (192962598).

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

128141850 is a wasteful number, since it uses less digits than its factorization.

128141850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8919 (or 8914 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 128141850 is about 11319.9757066877. The cubic root of 128141850 is about 504.1545176895.

The spelling of 128141850 in words is "one hundred twenty-eight million, one hundred forty-one thousand, eight hundred fifty".