47148771 has 8 divisors (see below), whose sum is σ = 63803584. Its totient is φ = 30963240.

The previous prime is 47148763. The next prime is 47148793. The reversal of 47148771 is 17784174.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47148771 - 2³ = 47148763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47148271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117085 + ... + 117486.

It is an arithmetic number, because the mean of its divisors is an integer number (7975448).

Almost surely, 2^47148771 is an apocalyptic number.

47148771 is a deficient number, since it is larger than the sum of its proper divisors (16654813).

47148771 is a wasteful number, since it uses less digits than its factorization.

47148771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234641.

The product of its digits is 43904, while the sum is 39.

The square root of 47148771 is about 6866.4962681123. The cubic root of 47148771 is about 361.2629790638.

The spelling of 47148771 in words is "forty-seven million, one hundred forty-eight thousand, seven hundred seventy-one".