147447668 has 12 divisors (see below), whose sum is σ = 259460292. Its totient is φ = 73316160.

The previous prime is 147447661. The next prime is 147447673. The reversal of 147447668 is 866744741.

It can be written as a sum of positive squares in 2 ways, for example, as 76247824 + 71199844 = 8732^2 + 8438^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147447661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101105 + ... + 102552.

It is an arithmetic number, because the mean of its divisors is an integer number (21621691).

Almost surely, 2^147447668 is an apocalyptic number.

It is an amenable number.

147447668 is a deficient number, since it is larger than the sum of its proper divisors (112012624).

147447668 is a wasteful number, since it uses less digits than its factorization.

147447668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203842 (or 203840 counting only the distinct ones).

The product of its digits is 903168, while the sum is 47.

The square root of 147447668 is about 12142.8031360144. The cubic root of 147447668 is about 528.2984089493.

The spelling of 147447668 in words is "one hundred forty-seven million, four hundred forty-seven thousand, six hundred sixty-eight".