147128668 has 6 divisors (see below), whose sum is σ = 257475176. Its totient is φ = 73564332.

The previous prime is 147128627. The next prime is 147128669. The reversal of 147128668 is 866821741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147128669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18391080 + ... + 18391087.

Almost surely, 2^147128668 is an apocalyptic number.

It is an amenable number.

147128668 is a deficient number, since it is larger than the sum of its proper divisors (110346508).

147128668 is a wasteful number, since it uses less digits than its factorization.

147128668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36782171 (or 36782169 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 147128668 is about 12129.6606712636. The cubic root of 147128668 is about 527.9171462815.

The spelling of 147128668 in words is "one hundred forty-seven million, one hundred twenty-eight thousand, six hundred sixty-eight".