47130945 has 16 divisors (see below), whose sum is σ = 78010560. Its totient is φ = 24269504.

The previous prime is 47130913. The next prime is 47130959. The reversal of 47130945 is 54903174.

It is a cyclic number.

It is not a de Polignac number, because 47130945 - 2⁵ = 47130913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53739 + ... + 54608.

It is an arithmetic number, because the mean of its divisors is an integer number (4875660).

Almost surely, 2^47130945 is an apocalyptic number.

It is an amenable number.

47130945 is a deficient number, since it is larger than the sum of its proper divisors (30879615).

47130945 is a wasteful number, since it uses less digits than its factorization.

47130945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108384.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 47130945 is about 6865.1981034782. The cubic root of 47130945 is about 361.2174445744.

The spelling of 47130945 in words is "forty-seven million, one hundred thirty thousand, nine hundred forty-five".