47057145 has 8 divisors (see below), whose sum is σ = 75291456. Its totient is φ = 25097136.

The previous prime is 47057123. The next prime is 47057147. The reversal of 47057145 is 54175074.

47057145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 47057145 - 2⁵ = 47057113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47057147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1568557 + ... + 1568586.

It is an arithmetic number, because the mean of its divisors is an integer number (9411432).

Almost surely, 2^47057145 is an apocalyptic number.

It is an amenable number.

47057145 is a deficient number, since it is larger than the sum of its proper divisors (28234311).

47057145 is a wasteful number, since it uses less digits than its factorization.

47057145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3137151.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 47057145 is about 6859.8210618062. The cubic root of 47057145 is about 361.0288086114.

The spelling of 47057145 in words is "forty-seven million, fifty-seven thousand, one hundred forty-five".