47248121 has 4 divisors (see below), whose sum is σ = 47681700. Its totient is φ = 46814544.

The previous prime is 47248111. The next prime is 47248127. The reversal of 47248121 is 12184274.

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 21492496 + 25755625 = 4636^2 + 5075^2 .

It is a cyclic number.

It is not a de Polignac number, because 47248121 - 2²² = 43053817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47248127) 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, 216626 + ... + 216843.

It is an arithmetic number, because the mean of its divisors is an integer number (11920425).

Almost surely, 2^47248121 is an apocalyptic number.

It is an amenable number.

47248121 is a deficient number, since it is larger than the sum of its proper divisors (433579).

47248121 is a wasteful number, since it uses less digits than its factorization.

47248121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433578.

The product of its digits is 3584, while the sum is 29.

The square root of 47248121 is about 6873.7268639363. The cubic root of 47248121 is about 361.5165473328.

The spelling of 47248121 in words is "forty-seven million, two hundred forty-eight thousand, one hundred twenty-one".