47139120 has 240 divisors, whose sum is σ = 185702400. Its totient is φ = 10492416.

The previous prime is 47139119. The next prime is 47139139. The reversal of 47139120 is 2193174.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 236781 + ... + 236979.

It is an arithmetic number, because the mean of its divisors is an integer number (773760).

Almost surely, 2^47139120 is an apocalyptic number.

47139120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47139120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92851200).

47139120 is an abundant number, since it is smaller than the sum of its proper divisors (138563280).

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

47139120 is a wasteful number, since it uses less digits than its factorization.

47139120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 47139120 is about 6865.7934719885. The cubic root of 47139120 is about 361.2383281071.

The spelling of 47139120 in words is "forty-seven million, one hundred thirty-nine thousand, one hundred twenty".