47340121 has 4 divisors (see below), whose sum is σ = 50124852. Its totient is φ = 44555392.

The previous prime is 47340103. The next prime is 47340149. The reversal of 47340121 is 12104374.

47340121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39438400 + 7901721 = 6280^2 + 2811^2 .

It is a cyclic number.

It is not a de Polignac number, because 47340121 - 2⁵ = 47340089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47340092 and 47340101.

It is not an unprimeable number, because it can be changed into a prime (47340101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392340 + ... + 1392373.

It is an arithmetic number, because the mean of its divisors is an integer number (12531213).

Almost surely, 2^47340121 is an apocalyptic number.

It is an amenable number.

47340121 is a deficient number, since it is larger than the sum of its proper divisors (2784731).

47340121 is a wasteful number, since it uses less digits than its factorization.

47340121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784730.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 47340121 is about 6880.4157577867. The cubic root of 47340121 is about 361.7510396095.

Adding to 47340121 its reverse (12104374), we get a palindrome (59444495).

The spelling of 47340121 in words is "forty-seven million, three hundred forty thousand, one hundred twenty-one".