47138039 has 16 divisors (see below), whose sum is σ = 52254720. Its totient is φ = 42250080.

The previous prime is 47138009. The next prime is 47138057. The reversal of 47138039 is 93083174.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47138039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47138009) 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, 109154 + ... + 109584.

It is an arithmetic number, because the mean of its divisors is an integer number (3265920).

Almost surely, 2^47138039 is an apocalyptic number.

47138039 is a deficient number, since it is larger than the sum of its proper divisors (5116681).

47138039 is a wasteful number, since it uses less digits than its factorization.

47138039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 47138039 is about 6865.7147479341. The cubic root of 47138039 is about 361.2355667657.

The spelling of 47138039 in words is "forty-seven million, one hundred thirty-eight thousand, thirty-nine".