128954700 has 144 divisors (see below), whose sum is σ = 473858560. Its totient is φ = 29471040.

The previous prime is 128954689. The next prime is 128954711. The reversal of 128954700 is 7459821.

It is an interprime number because it is at equal distance from previous prime (128954689) and next prime (128954711).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 15489 + ... + 22311.

Almost surely, 2^128954700 is an apocalyptic number.

128954700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128954700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236929280).

128954700 is an abundant number, since it is smaller than the sum of its proper divisors (344903860).

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

128954700 is a wasteful number, since it uses less digits than its factorization.

128954700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853 (or 6840 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 128954700 is about 11355.8222951929. The cubic root of 128954700 is about 505.2182829183.

The spelling of 128954700 in words is "one hundred twenty-eight million, nine hundred fifty-four thousand, seven hundred".