148749317443 has 4 divisors (see below), whose sum is σ = 148750146760. Its totient is φ = 148748488128.

The previous prime is 148749317441. The next prime is 148749317447. The reversal of 148749317443 is 344713947841.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 148749317443 - 2¹ = 148749317441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148749317441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21105 + ... + 545842.

It is an arithmetic number, because the mean of its divisors is an integer number (37187536690).

Almost surely, 2^148749317443 is an apocalyptic number.

148749317443 is a deficient number, since it is larger than the sum of its proper divisors (829317).

148749317443 is an equidigital number, since it uses as much as digits as its factorization.

148749317443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829316.

The product of its digits is 8128512, while the sum is 55.

The spelling of 148749317443 in words is "one hundred forty-eight billion, seven hundred forty-nine million, three hundred seventeen thousand, four hundred forty-three".