147144618 has 12 divisors (see below), whose sum is σ = 318813378. Its totient is φ = 49048200.

The previous prime is 147144617. The next prime is 147144629. The reversal of 147144618 is 816441741.

It can be written as a sum of positive squares in only one way, i.e., 142491969 + 4652649 = 11937^2 + 2157^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (147144611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4087333 + ... + 4087368.

Almost surely, 2^147144618 is an apocalyptic number.

147144618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

147144618 is an abundant number, since it is smaller than the sum of its proper divisors (171668760).

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

147144618 is a wasteful number, since it uses less digits than its factorization.

147144618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8174709 (or 8174706 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 147144618 is about 12130.3181326790. The cubic root of 147144618 is about 527.9362224963.

The spelling of 147144618 in words is "one hundred forty-seven million, one hundred forty-four thousand, six hundred eighteen".