47105139 has 16 divisors (see below), whose sum is σ = 64373760. Its totient is φ = 30624960.

The previous prime is 47105131. The next prime is 47105153. The reversal of 47105139 is 93150174.

It is not a de Polignac number, because 47105139 - 2³ = 47105131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47105131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61519 + ... + 62279.

It is an arithmetic number, because the mean of its divisors is an integer number (4023360).

Almost surely, 2^47105139 is an apocalyptic number.

47105139 is a deficient number, since it is larger than the sum of its proper divisors (17268621).

47105139 is a wasteful number, since it uses less digits than its factorization.

47105139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 47105139 is about 6863.3183665046. The cubic root of 47105139 is about 361.1515057367.

The spelling of 47105139 in words is "forty-seven million, one hundred five thousand, one hundred thirty-nine".