47401121 has 4 divisors (see below), whose sum is σ = 47417412. Its totient is φ = 47384832.

The previous prime is 47401111. The next prime is 47401141. The reversal of 47401121 is 12110474.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16443025 + 30958096 = 4055^2 + 5564^2 .

It is a cyclic number.

It is not a de Polignac number, because 47401121 - 2¹⁴ = 47384737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47401093 and 47401102.

It is not an unprimeable number, because it can be changed into a prime (47401111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2456 + ... + 10041.

It is an arithmetic number, because the mean of its divisors is an integer number (11854353).

Almost surely, 2^47401121 is an apocalyptic number.

It is an amenable number.

47401121 is a deficient number, since it is larger than the sum of its proper divisors (16291).

47401121 is a wasteful number, since it uses less digits than its factorization.

47401121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16290.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 47401121 is about 6884.8472023713. The cubic root of 47401121 is about 361.9063507331.

Adding to 47401121 its reverse (12110474), we get a palindrome (59511595).

The spelling of 47401121 in words is "forty-seven million, four hundred one thousand, one hundred twenty-one".