147668815 has 16 divisors (see below), whose sum is σ = 202789440. Its totient is φ = 101122560.

The previous prime is 147668803. The next prime is 147668819. The reversal of 147668815 is 518866741.

It is not a de Polignac number, because 147668815 - 2²⁵ = 114114383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147668819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28441 + ... + 33229.

It is an arithmetic number, because the mean of its divisors is an integer number (12674340).

Almost surely, 2^147668815 is an apocalyptic number.

147668815 is a deficient number, since it is larger than the sum of its proper divisors (55120625).

147668815 is an equidigital number, since it uses as much as digits as its factorization.

147668815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682.

The product of its digits is 322560, while the sum is 46.

The square root of 147668815 is about 12151.9058176074. The cubic root of 147668815 is about 528.5623969551.

The spelling of 147668815 in words is "one hundred forty-seven million, six hundred sixty-eight thousand, eight hundred fifteen".