47135144 has 32 divisors (see below), whose sum is σ = 101304000. Its totient is φ = 20140800.

The previous prime is 47135141. The next prime is 47135147. The reversal of 47135144 is 44153174.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47135141) and next prime (47135147).

It is not an unprimeable number, because it can be changed into a prime (47135141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21407 + ... + 23505.

It is an arithmetic number, because the mean of its divisors is an integer number (3165750).

Almost surely, 2^47135144 is an apocalyptic number.

It is an amenable number.

47135144 is an abundant number, since it is smaller than the sum of its proper divisors (54168856).

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

47135144 is a wasteful number, since it uses less digits than its factorization.

47135144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513 (or 2509 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 47135144 is about 6865.5039144989. The cubic root of 47135144 is about 361.2281714759.

The spelling of 47135144 in words is "forty-seven million, one hundred thirty-five thousand, one hundred forty-four".