128802275 has 12 divisors (see below), whose sum is σ = 182531472. Its totient is φ = 88321440.

The previous prime is 128802263. The next prime is 128802299. The reversal of 128802275 is 572208821.

It is not a de Polignac number, because 128802275 - 2⁸ = 128802019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367832 + ... + 368181.

It is an arithmetic number, because the mean of its divisors is an integer number (15210956).

Almost surely, 2^128802275 is an apocalyptic number.

128802275 is a deficient number, since it is larger than the sum of its proper divisors (53729197).

128802275 is an equidigital number, since it uses as much as digits as its factorization.

128802275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736030 (or 736025 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 128802275 is about 11349.1089958639. The cubic root of 128802275 is about 505.0191477235.

The spelling of 128802275 in words is "one hundred twenty-eight million, eight hundred two thousand, two hundred seventy-five".