49100139 has 24 divisors (see below), whose sum is σ = 78182832. Its totient is φ = 29445120.

The previous prime is 49100111. The next prime is 49100141. The reversal of 49100139 is 93100194.

It is not a de Polignac number, because 49100139 - 2⁷ = 49100011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49100339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7047 + ... + 12159.

It is an arithmetic number, because the mean of its divisors is an integer number (3257618).

Almost surely, 2^49100139 is an apocalyptic number.

49100139 is a deficient number, since it is larger than the sum of its proper divisors (29082693).

49100139 is a wasteful number, since it uses less digits than its factorization.

49100139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227 (or 5224 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 49100139 is about 7007.1491349906. The cubic root of 49100139 is about 366.1796797592.

The spelling of 49100139 in words is "forty-nine million, one hundred thousand, one hundred thirty-nine".