47065139 has 4 divisors (see below), whose sum is σ = 51343800. Its totient is φ = 42786480.

The previous prime is 47065063. The next prime is 47065159. The reversal of 47065139 is 93156074.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47065139 - 2²⁴ = 30287923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47065099 and 47065108.

It is not an unprimeable number, because it can be changed into a prime (47065159) 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, 2139314 + ... + 2139335.

It is an arithmetic number, because the mean of its divisors is an integer number (12835950).

Almost surely, 2^47065139 is an apocalyptic number.

47065139 is a deficient number, since it is larger than the sum of its proper divisors (4278661).

47065139 is a wasteful number, since it uses less digits than its factorization.

47065139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278660.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 47065139 is about 6860.4037053223. The cubic root of 47065139 is about 361.0492511385.

The spelling of 47065139 in words is "forty-seven million, sixty-five thousand, one hundred thirty-nine".