128970315 has 36 divisors (see below), whose sum is σ = 233930736. Its totient is φ = 65607168.

The previous prime is 128970307. The next prime is 128970329. The reversal of 128970315 is 513079821.

It is not a de Polignac number, because 128970315 - 2³ = 128970307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128970315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 365179 + ... + 365531.

It is an arithmetic number, because the mean of its divisors is an integer number (6498076).

Almost surely, 2^128970315 is an apocalyptic number.

128970315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128970315 is a deficient number, since it is larger than the sum of its proper divisors (104960421).

128970315 is an equidigital number, since it uses as much as digits as its factorization.

128970315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 384 counting only the distinct ones).

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

The square root of 128970315 is about 11356.5098071547. The cubic root of 128970315 is about 505.2386742265.

The spelling of 128970315 in words is "one hundred twenty-eight million, nine hundred seventy thousand, three hundred fifteen".