147645216 has 36 divisors (see below), whose sum is σ = 419866902. Its totient is φ = 49214976.

The previous prime is 147645209. The next prime is 147645229. The reversal of 147645216 is 612546741.

147645216 is a `hidden beast` number, since 1 + 4 + 7 + 645 + 2 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 74028816 + 73616400 = 8604^2 + 8580^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 256041 + ... + 256616.

Almost surely, 2^147645216 is an apocalyptic number.

147645216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

147645216 is an abundant number, since it is smaller than the sum of its proper divisors (272221686).

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

147645216 is a wasteful number, since it uses less digits than its factorization.

147645216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512673 (or 512662 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 147645216 is about 12150.9347788555. The cubic root of 147645216 is about 528.5342388805.

The spelling of 147645216 in words is "one hundred forty-seven million, six hundred forty-five thousand, two hundred sixteen".