47581151 has 4 divisors (see below), whose sum is σ = 47664192. Its totient is φ = 47498112.

The previous prime is 47581129. The next prime is 47581207. The reversal of 47581151 is 15118574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15118574 = 2 ⋅7559287.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47581151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47581451) 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, 40655 + ... + 41808.

It is an arithmetic number, because the mean of its divisors is an integer number (11916048).

Almost surely, 2^47581151 is an apocalyptic number.

47581151 is a deficient number, since it is larger than the sum of its proper divisors (83041).

47581151 is an equidigital number, since it uses as much as digits as its factorization.

47581151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83040.

The product of its digits is 5600, while the sum is 32.

The square root of 47581151 is about 6897.9091759750. The cubic root of 47581151 is about 362.3639467234.

The spelling of 47581151 in words is "forty-seven million, five hundred eighty-one thousand, one hundred fifty-one".