148723154447 has 4 divisors (see below), whose sum is σ = 169969319376. Its totient is φ = 127476989520.

The previous prime is 148723154443. The next prime is 148723154453. The reversal of 148723154447 is 744451327841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148723154447 - 2² = 148723154443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148723154395 and 148723154404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148723154443) 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, 10623082454 + ... + 10623082467.

It is an arithmetic number, because the mean of its divisors is an integer number (42492329844).

Almost surely, 2^148723154447 is an apocalyptic number.

148723154447 is a deficient number, since it is larger than the sum of its proper divisors (21246164929).

148723154447 is an equidigital number, since it uses as much as digits as its factorization.

148723154447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21246164928.

The product of its digits is 3010560, while the sum is 50.

The spelling of 148723154447 in words is "one hundred forty-eight billion, seven hundred twenty-three million, one hundred fifty-four thousand, four hundred forty-seven".