147428165 has 16 divisors (see below), whose sum is σ = 192387312. Its totient is φ = 108002304.

The previous prime is 147428161. The next prime is 147428173. The reversal of 147428165 is 561824741.

It is a Cunningham number, because it is equal to 12142²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1 + 147428164 = 1^2 + 12142^2 .

It is a cyclic number.

It is not a de Polignac number, because 147428165 - 2² = 147428161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147428161) 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, 20294 + ... + 26583.

It is an arithmetic number, because the mean of its divisors is an integer number (12024207).

Almost surely, 2^147428165 is an apocalyptic number.

It is an amenable number.

147428165 is a deficient number, since it is larger than the sum of its proper divisors (44959147).

147428165 is a wasteful number, since it uses less digits than its factorization.

147428165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46936.

The product of its digits is 53760, while the sum is 38.

The square root of 147428165 is about 12142.0000411794. Note that the first 4 decimals coincide. The cubic root of 147428165 is about 528.2751151296.

The spelling of 147428165 in words is "one hundred forty-seven million, four hundred twenty-eight thousand, one hundred sixty-five".