147755972 has 72 divisors (see below), whose sum is σ = 327652416. Its totient is φ = 57782592.

The previous prime is 147755963. The next prime is 147755977. The reversal of 147755972 is 279557741.

It is not an unprimeable number, because it can be changed into a prime (147755977) 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 23 ways as a sum of consecutive naturals, for example, 262163 + ... + 262725.

It is an arithmetic number, because the mean of its divisors is an integer number (4550728).

Almost surely, 2^147755972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147755972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163826208).

147755972 is an abundant number, since it is smaller than the sum of its proper divisors (179896444).

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

147755972 is a wasteful number, since it uses less digits than its factorization.

147755972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 688 counting only the distinct ones).

The product of its digits is 617400, while the sum is 47.

The square root of 147755972 is about 12155.4914339158. The cubic root of 147755972 is about 528.6663657640. Note that the first 3 decimals are identical.

The spelling of 147755972 in words is "one hundred forty-seven million, seven hundred fifty-five thousand, nine hundred seventy-two".