47231313 has 4 divisors (see below), whose sum is σ = 62975088. Its totient is φ = 31487540.

The previous prime is 47231311. The next prime is 47231333. The reversal of 47231313 is 31313274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47231313 - 2¹ = 47231311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47231311) 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, 7871883 + ... + 7871888.

It is an arithmetic number, because the mean of its divisors is an integer number (15743772).

Almost surely, 2^47231313 is an apocalyptic number.

It is an amenable number.

47231313 is a deficient number, since it is larger than the sum of its proper divisors (15743775).

47231313 is a wasteful number, since it uses less digits than its factorization.

47231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15743774.

The product of its digits is 1512, while the sum is 24.

The square root of 47231313 is about 6872.5041287729. The cubic root of 47231313 is about 361.4736737350.

Adding to 47231313 its reverse (31313274), we get a palindrome (78544587).

The spelling of 47231313 in words is "forty-seven million, two hundred thirty-one thousand, three hundred thirteen".