47145230 has 48 divisors (see below), whose sum is σ = 95376960. Its totient is φ = 16758720.

The previous prime is 47145229. The next prime is 47145247. The reversal of 47145230 is 3254174.

47145230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47145230.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 56456 + ... + 57284.

It is an arithmetic number, because the mean of its divisors is an integer number (1987020).

Almost surely, 2^47145230 is an apocalyptic number.

47145230 is an abundant number, since it is smaller than the sum of its proper divisors (48231730).

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

47145230 is a wasteful number, since it uses less digits than its factorization.

47145230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 47145230 is about 6866.2384170665. The cubic root of 47145230 is about 361.2539348957.

The spelling of 47145230 in words is "forty-seven million, one hundred forty-five thousand, two hundred thirty".