147185740 has 96 divisors (see below), whose sum is σ = 351783936. Its totient is φ = 51321600.

The previous prime is 147185713. The next prime is 147185749. The reversal of 147185740 is 47581741.

It is a self number, because there is not a number n which added to its sum of digits gives 147185740.

It is not an unprimeable number, because it can be changed into a prime (147185749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902899 + ... + 903061.

It is an arithmetic number, because the mean of its divisors is an integer number (3664416).

Almost surely, 2^147185740 is an apocalyptic number.

147185740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147185740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175891968).

147185740 is an abundant number, since it is smaller than the sum of its proper divisors (204598196).

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

147185740 is a wasteful number, since it uses less digits than its factorization.

147185740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 147185740 is about 12132.0130234022. The cubic root of 147185740 is about 527.9853980887.

The spelling of 147185740 in words is "one hundred forty-seven million, one hundred eighty-five thousand, seven hundred forty".