128042612 has 6 divisors (see below), whose sum is σ = 224074578. Its totient is φ = 64021304.

The previous prime is 128042597. The next prime is 128042641. The reversal of 128042612 is 216240821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 124634896 + 3407716 = 11164^2 + 1846^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16005323 + ... + 16005330.

It is an arithmetic number, because the mean of its divisors is an integer number (37345763).

Almost surely, 2^128042612 is an apocalyptic number.

It is an amenable number.

128042612 is a deficient number, since it is larger than the sum of its proper divisors (96031966).

128042612 is a wasteful number, since it uses less digits than its factorization.

128042612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32010657 (or 32010655 counting only the distinct ones).

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

The square root of 128042612 is about 11315.5915444134. The cubic root of 128042612 is about 504.0243384988.

The spelling of 128042612 in words is "one hundred twenty-eight million, forty-two thousand, six hundred twelve".