148278974239 has 8 divisors (see below), whose sum is σ = 163806462720. Its totient is φ = 133092749400.

The previous prime is 148278974231. The next prime is 148278974257. The reversal of 148278974239 is 932479872841.

148278974239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 148278974239 - 2³ = 148278974231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148278974231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85314997 + ... + 85316734.

It is an arithmetic number, because the mean of its divisors is an integer number (20475807840).

Almost surely, 2^148278974239 is an apocalyptic number.

148278974239 is a deficient number, since it is larger than the sum of its proper divisors (15527488481).

148278974239 is a wasteful number, since it uses less digits than its factorization.

148278974239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170631821.

The product of its digits is 48771072, while the sum is 64.

The spelling of 148278974239 in words is "one hundred forty-eight billion, two hundred seventy-eight million, nine hundred seventy-four thousand, two hundred thirty-nine".