148748317521 has 8 divisors (see below), whose sum is σ = 198332951904. Its totient is φ = 99164614080.

The previous prime is 148748317517. The next prime is 148748317567. The reversal of 148748317521 is 125713847841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 148748317521 - 2² = 148748317517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148748319521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344910 + ... + 645336.

It is an arithmetic number, because the mean of its divisors is an integer number (24791618988).

Almost surely, 2^148748317521 is an apocalyptic number.

It is an amenable number.

148748317521 is a deficient number, since it is larger than the sum of its proper divisors (49584634383).

148748317521 is a wasteful number, since it uses less digits than its factorization.

148748317521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465471.

The product of its digits is 1505280, while the sum is 51.

The spelling of 148748317521 in words is "one hundred forty-eight billion, seven hundred forty-eight million, three hundred seventeen thousand, five hundred twenty-one".