147239740 has 48 divisors (see below), whose sum is σ = 333083520. Its totient is φ = 54492480.

The previous prime is 147239717. The next prime is 147239747. The reversal of 147239740 is 47932741.

147239740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 147239740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147239747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11835 + ... + 20845.

It is an arithmetic number, because the mean of its divisors is an integer number (6939240).

Almost surely, 2^147239740 is an apocalyptic number.

147239740 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 147239740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166541760).

147239740 is an abundant number, since it is smaller than the sum of its proper divisors (185843780).

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

147239740 is a wasteful number, since it uses less digits than its factorization.

147239740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9082 (or 9080 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 147239740 is about 12134.2383362121. The cubic root of 147239740 is about 528.0499598808.

The spelling of 147239740 in words is "one hundred forty-seven million, two hundred thirty-nine thousand, seven hundred forty".