47205137 has 8 divisors (see below), whose sum is σ = 54312000. Its totient is φ = 40189104.

The previous prime is 47205121. The next prime is 47205143. The reversal of 47205137 is 73150274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47205137 - 2⁴ = 47205121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47205737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21587 + ... + 23672.

It is an arithmetic number, because the mean of its divisors is an integer number (6789000).

Almost surely, 2^47205137 is an apocalyptic number.

It is an amenable number.

47205137 is a deficient number, since it is larger than the sum of its proper divisors (7106863).

47205137 is a wasteful number, since it uses less digits than its factorization.

47205137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45415.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 47205137 is about 6870.5994643845. The cubic root of 47205137 is about 361.4068841218.

The spelling of 47205137 in words is "forty-seven million, two hundred five thousand, one hundred thirty-seven".