147640136 has 24 divisors (see below), whose sum is σ = 322022070. Its totient is φ = 63274176.

The previous prime is 147640133. The next prime is 147640159. The reversal of 147640136 is 631046741.

147640136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 146652100 + 988036 = 12110^2 + 994^2 .

It is not an unprimeable number, because it can be changed into a prime (147640133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187925 + ... + 188708.

Almost surely, 2^147640136 is an apocalyptic number.

It is an amenable number.

147640136 is an abundant number, since it is smaller than the sum of its proper divisors (174381934).

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

147640136 is a wasteful number, since it uses less digits than its factorization.

147640136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376653 (or 376642 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 147640136 is about 12150.7257396421. The cubic root of 147640136 is about 528.5281770864.

Adding to 147640136 its reverse (631046741), we get a palindrome (778686877).

The spelling of 147640136 in words is "one hundred forty-seven million, six hundred forty thousand, one hundred thirty-six".