147228915 has 16 divisors (see below), whose sum is σ = 235721376. Its totient is φ = 78470400.

The previous prime is 147228901. The next prime is 147228919. The reversal of 147228915 is 519822741.

It is not a de Polignac number, because 147228915 - 2⁴ = 147228899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147228919) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 34605 + ... + 38625.

It is an arithmetic number, because the mean of its divisors is an integer number (14732586).

Almost surely, 2^147228915 is an apocalyptic number.

147228915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

147228915 is a deficient number, since it is larger than the sum of its proper divisors (88492461).

147228915 is a wasteful number, since it uses less digits than its factorization.

147228915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6470.

The product of its digits is 40320, while the sum is 39.

The square root of 147228915 is about 12133.7922761188. The cubic root of 147228915 is about 528.0370188978.

The spelling of 147228915 in words is "one hundred forty-seven million, two hundred twenty-eight thousand, nine hundred fifteen".