147128872 has 64 divisors (see below), whose sum is σ = 313819200. Its totient is φ = 64074240.

The previous prime is 147128809. The next prime is 147128873. The reversal of 147128872 is 278821741.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (147128873) 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, 237379 + ... + 237997.

It is an arithmetic number, because the mean of its divisors is an integer number (4903425).

Almost surely, 2^147128872 is an apocalyptic number.

147128872 is the 9904-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147128872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156909600).

147128872 is an abundant number, since it is smaller than the sum of its proper divisors (166690328).

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

147128872 is a wasteful number, since it uses less digits than its factorization.

147128872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 742 counting only the distinct ones).

The product of its digits is 50176, while the sum is 40.

The square root of 147128872 is about 12129.6690803995. The cubic root of 147128872 is about 527.9173902744.

The spelling of 147128872 in words is "one hundred forty-seven million, one hundred twenty-eight thousand, eight hundred seventy-two".