147217740 has 24 divisors (see below), whose sum is σ = 412209840. Its totient is φ = 39258048.

The previous prime is 147217723. The next prime is 147217747. The reversal of 147217740 is 47712741.

It is not an unprimeable number, because it can be changed into a prime (147217747) 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 7 ways as a sum of consecutive naturals, for example, 1226755 + ... + 1226874.

It is an arithmetic number, because the mean of its divisors is an integer number (17175410).

Almost surely, 2^147217740 is an apocalyptic number.

147217740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147217740 is an abundant number, since it is smaller than the sum of its proper divisors (264992100).

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

147217740 is a wasteful number, since it uses less digits than its factorization.

147217740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453641 (or 2453639 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 147217740 is about 12133.3317765567. The cubic root of 147217740 is about 528.0236588343.

The spelling of 147217740 in words is "one hundred forty-seven million, two hundred seventeen thousand, seven hundred forty".