581372313 has 8 divisors (see below), whose sum is σ = 783154848. Its totient is φ = 383585664.

The previous prime is 581372303. The next prime is 581372329. The reversal of 581372313 is 313273185.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 581372313 - 2⁶ = 581372249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (581372303) 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 7 ways as a sum of consecutive naturals, for example, 998631 + ... + 999212.

It is an arithmetic number, because the mean of its divisors is an integer number (97894356).

Almost surely, 2^581372313 is an apocalyptic number.

It is an amenable number.

581372313 is a deficient number, since it is larger than the sum of its proper divisors (201782535).

581372313 is a wasteful number, since it uses less digits than its factorization.

581372313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997943.

The product of its digits is 15120, while the sum is 33.

The square root of 581372313 is about 24111.6634225016. The cubic root of 581372313 is about 834.6123018787.

The spelling of 581372313 in words is "five hundred eighty-one million, three hundred seventy-two thousand, three hundred thirteen".