47534145 has 16 divisors (see below), whose sum is σ = 77127552. Its totient is φ = 24993920.

The previous prime is 47534119. The next prime is 47534147. The reversal of 47534145 is 54143574.

It is not a de Polignac number, because 47534145 - 2¹¹ = 47532097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47534147) 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, 21252 + ... + 23381.

It is an arithmetic number, because the mean of its divisors is an integer number (4820472).

Almost surely, 2^47534145 is an apocalyptic number.

It is an amenable number.

47534145 is a deficient number, since it is larger than the sum of its proper divisors (29593407).

47534145 is a wasteful number, since it uses less digits than its factorization.

47534145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44712.

The product of its digits is 33600, while the sum is 33.

The square root of 47534145 is about 6894.5010696932. The cubic root of 47534145 is about 362.2445794842.

The spelling of 47534145 in words is "forty-seven million, five hundred thirty-four thousand, one hundred forty-five".