47810139 has 16 divisors (see below), whose sum is σ = 70113792. Its totient is φ = 28794528.

The previous prime is 47810131. The next prime is 47810159. The reversal of 47810139 is 93101874.

It is not a de Polignac number, because 47810139 - 2³ = 47810131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47810131) 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, 11209 + ... + 14874.

It is an arithmetic number, because the mean of its divisors is an integer number (4382112).

Almost surely, 2^47810139 is an apocalyptic number.

47810139 is a deficient number, since it is larger than the sum of its proper divisors (22303653).

47810139 is a wasteful number, since it uses less digits than its factorization.

47810139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26146.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 47810139 is about 6914.4876165917. The cubic root of 47810139 is about 362.9443182736.

The spelling of 47810139 in words is "forty-seven million, eight hundred ten thousand, one hundred thirty-nine".