128397150 has 180 divisors, whose sum is σ = 415640808. Its totient is φ = 29302560.

The previous prime is 128397121. The next prime is 128397169. The reversal of 128397150 is 51793821.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 198127 + ... + 198773.

Almost surely, 2^128397150 is an apocalyptic number.

128397150 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 128397150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207820404).

128397150 is an abundant number, since it is smaller than the sum of its proper divisors (287243658).

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

128397150 is a wasteful number, since it uses less digits than its factorization.

128397150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 128397150 is about 11331.2466216211. The cubic root of 128397150 is about 504.4891085228.

The spelling of 128397150 in words is "one hundred twenty-eight million, three hundred ninety-seven thousand, one hundred fifty".