147721648 has 10 divisors (see below), whose sum is σ = 286210724. Its totient is φ = 73860816.

The previous prime is 147721643. The next prime is 147721661. The reversal of 147721648 is 846127741.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 147721648.

It is not an unprimeable number, because it can be changed into a prime (147721643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4616286 + ... + 4616317.

Almost surely, 2^147721648 is an apocalyptic number.

It is an amenable number.

147721648 is a deficient number, since it is larger than the sum of its proper divisors (138489076).

147721648 is an equidigital number, since it uses as much as digits as its factorization.

147721648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232611 (or 9232605 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 147721648 is about 12154.0794797467. The cubic root of 147721648 is about 528.6254258517.

The spelling of 147721648 in words is "one hundred forty-seven million, seven hundred twenty-one thousand, six hundred forty-eight".