47201481 has 16 divisors (see below), whose sum is σ = 70436800. Its totient is φ = 31238784.

The previous prime is 47201477. The next prime is 47201509. The reversal of 47201481 is 18410274.

It is not a de Polignac number, because 47201481 - 2² = 47201477 is a prime.

It is a super-2 number, since 2×47201481² = 4455959617186722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47201411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2536 + ... + 10041.

It is an arithmetic number, because the mean of its divisors is an integer number (4402300).

Almost surely, 2^47201481 is an apocalyptic number.

It is an amenable number.

47201481 is a deficient number, since it is larger than the sum of its proper divisors (23235319).

47201481 is a wasteful number, since it uses less digits than its factorization.

47201481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12725 (or 12719 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 47201481 is about 6870.3333980237. Note that the first 4 decimals coincide. The cubic root of 47201481 is about 361.3975536565.

The spelling of 47201481 in words is "forty-seven million, two hundred one thousand, four hundred eighty-one".