148115839 has 4 divisors (see below), whose sum is σ = 148248856. Its totient is φ = 147982824.

The previous prime is 148115833. The next prime is 148115873. The reversal of 148115839 is 938511841.

It is a happy number.

148115839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 148115839 - 2³ = 148115831 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 (148115831) 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, 64824 + ... + 67069.

It is an arithmetic number, because the mean of its divisors is an integer number (37062214).

Almost surely, 2^148115839 is an apocalyptic number.

148115839 is a deficient number, since it is larger than the sum of its proper divisors (133017).

148115839 is a wasteful number, since it uses less digits than its factorization.

148115839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133016.

The product of its digits is 34560, while the sum is 40.

The square root of 148115839 is about 12170.2850829387. The cubic root of 148115839 is about 529.0952155110.

The spelling of 148115839 in words is "one hundred forty-eight million, one hundred fifteen thousand, eight hundred thirty-nine".