128604212 has 24 divisors (see below), whose sum is σ = 253985760. Its totient is φ = 56440160.

The previous prime is 128604191. The next prime is 128604233. The reversal of 128604212 is 212406821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (128604191) and next prime (128604233).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49118 + ... + 51669.

It is an arithmetic number, because the mean of its divisors is an integer number (10582740).

Almost surely, 2^128604212 is an apocalyptic number.

It is an amenable number.

128604212 is a deficient number, since it is larger than the sum of its proper divisors (125381548).

128604212 is a wasteful number, since it uses less digits than its factorization.

128604212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100831 (or 100829 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 128604212 is about 11340.3797114559. The cubic root of 128604212 is about 504.7601540526.

The spelling of 128604212 in words is "one hundred twenty-eight million, six hundred four thousand, two hundred twelve".