48139 has 12 divisors (see below), whose sum is σ = 61936. Its totient is φ = 36432.

The previous prime is 48131. The next prime is 48157. The reversal of 48139 is 93184.

48139 = 7² + 8² + ... + 52².

48139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 48139 - 2³ = 48131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2082 + ... + 2104.

2⁴⁸¹³⁹ is an apocalyptic number.

48139 is a deficient number, since it is larger than the sum of its proper divisors (13797).

48139 is a wasteful number, since it uses less digits than its factorization.

48139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 43 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 48139 is about 219.4060163259. The cubic root of 48139 is about 36.3774585711.

Multiplying 48139 by its reverse (93184), we get a square (4485784576 = 66976²).

The spelling of 48139 in words is "forty-eight thousand, one hundred thirty-nine".