47205138 has 16 divisors (see below), whose sum is σ = 95155200. Its totient is φ = 15610896.

The previous prime is 47205121. The next prime is 47205143. The reversal of 47205138 is 83150274.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30213 + ... + 31736.

It is an arithmetic number, because the mean of its divisors is an integer number (5947200).

Almost surely, 2^47205138 is an apocalyptic number.

47205138 is an abundant number, since it is smaller than the sum of its proper divisors (47950062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47205138 is a wasteful number, since it uses less digits than its factorization.

47205138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62081.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 47205138 is about 6870.5995371583. The cubic root of 47205138 is about 361.4068866738.

The spelling of 47205138 in words is "forty-seven million, two hundred five thousand, one hundred thirty-eight".