47121140 has 48 divisors (see below), whose sum is σ = 113641920. Its totient is φ = 16231680.

The previous prime is 47121079. The next prime is 47121241. The reversal of 47121140 is 4112174.

47121140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 15 ways as a sum of consecutive naturals, for example, 1457 + ... + 9816.

It is an arithmetic number, because the mean of its divisors is an integer number (2367540).

Almost surely, 2^47121140 is an apocalyptic number.

It is an amenable number.

47121140 is an abundant number, since it is smaller than the sum of its proper divisors (66520780).

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

47121140 is a wasteful number, since it uses less digits than its factorization.

47121140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11312 (or 11310 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 47121140 is about 6864.4839572979. The cubic root of 47121140 is about 361.1923939226.

The spelling of 47121140 in words is "forty-seven million, one hundred twenty-one thousand, one hundred forty".