148472915721 has 16 divisors (see below), whose sum is σ = 213546641280. Its totient is φ = 91215907200.

The previous prime is 148472915713. The next prime is 148472915761. The reversal of 148472915721 is 127519274841.

It is not a de Polignac number, because 148472915721 - 2³ = 148472915713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148472915711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3143781 + ... + 3190658.

It is an arithmetic number, because the mean of its divisors is an integer number (13346665080).

Almost surely, 2^148472915721 is an apocalyptic number.

It is an amenable number.

148472915721 is a deficient number, since it is larger than the sum of its proper divisors (65073725559).

148472915721 is a wasteful number, since it uses less digits than its factorization.

148472915721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335056.

The product of its digits is 1128960, while the sum is 51.

The spelling of 148472915721 in words is "one hundred forty-eight billion, four hundred seventy-two million, nine hundred fifteen thousand, seven hundred twenty-one".