128534322 has 32 divisors (see below), whose sum is σ = 303926400. Its totient is φ = 35457408.

The previous prime is 128534321. The next prime is 128534323. The reversal of 128534322 is 223435821.

It is an interprime number because it is at equal distance from previous prime (128534321) and next prime (128534323).

It is a self number, because there is not a number n which added to its sum of digits gives 128534322.

It is not an unprimeable number, because it can be changed into a prime (128534321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51547 + ... + 53982.

It is an arithmetic number, because the mean of its divisors is an integer number (9497700).

Almost surely, 2^128534322 is an apocalyptic number.

128534322 is an abundant number, since it is smaller than the sum of its proper divisors (175392078).

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

128534322 is a wasteful number, since it uses less digits than its factorization.

128534322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105570.

The product of its digits is 11520, while the sum is 30.

The square root of 128534322 is about 11337.2978262018. The cubic root of 128534322 is about 504.6687001282.

The spelling of 128534322 in words is "one hundred twenty-eight million, five hundred thirty-four thousand, three hundred twenty-two".