47511140 has 12 divisors (see below), whose sum is σ = 99773436. Its totient is φ = 19004448.

The previous prime is 47511133. The next prime is 47511143. The reversal of 47511140 is 4111574.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8248384 + 39262756 = 2872^2 + 6266^2 .

It is not an unprimeable number, because it can be changed into a prime (47511143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187759 + ... + 1187798.

It is an arithmetic number, because the mean of its divisors is an integer number (8314453).

Almost surely, 2^47511140 is an apocalyptic number.

It is an amenable number.

47511140 is an abundant number, since it is smaller than the sum of its proper divisors (52262296).

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

47511140 is a wasteful number, since it uses less digits than its factorization.

47511140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375566 (or 2375564 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 47511140 is about 6892.8325092084. The cubic root of 47511140 is about 362.1861318057.

The spelling of 47511140 in words is "forty-seven million, five hundred eleven thousand, one hundred forty".