148285885139 has 4 divisors (see below), whose sum is σ = 169469583024. Its totient is φ = 127102187256.

The previous prime is 148285885123. The next prime is 148285885157. The reversal of 148285885139 is 931588582841.

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 148285885139 - 2⁴ = 148285885123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148285885109) 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, 10591848932 + ... + 10591848945.

It is an arithmetic number, because the mean of its divisors is an integer number (42367395756).

Almost surely, 2^148285885139 is an apocalyptic number.

148285885139 is a deficient number, since it is larger than the sum of its proper divisors (21183697885).

148285885139 is an equidigital number, since it uses as much as digits as its factorization.

148285885139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21183697884.

The product of its digits is 22118400, while the sum is 62.

The spelling of 148285885139 in words is "one hundred forty-eight billion, two hundred eighty-five million, eight hundred eighty-five thousand, one hundred thirty-nine".