49548139 has 4 divisors (see below), whose sum is σ = 49688856. Its totient is φ = 49407424.

The previous prime is 49548119. The next prime is 49548151. The reversal of 49548139 is 93184594.

It is a happy number.

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 49548139 - 2⁹ = 49547627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49548095 and 49548104.

It is not an unprimeable number, because it can be changed into a prime (49548119) 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, 69829 + ... + 70534.

It is an arithmetic number, because the mean of its divisors is an integer number (12422214).

Almost surely, 2^49548139 is an apocalyptic number.

49548139 is a deficient number, since it is larger than the sum of its proper divisors (140717).

49548139 is a wasteful number, since it uses less digits than its factorization.

49548139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140716.

The product of its digits is 155520, while the sum is 43.

The square root of 49548139 is about 7039.0438981441. The cubic root of 49548139 is about 367.2900097639.

The spelling of 49548139 in words is "forty-nine million, five hundred forty-eight thousand, one hundred thirty-nine".