331056005 has 12 divisors (see below), whose sum is σ = 462127500. Its totient is φ = 227009664.

The previous prime is 331056001. The next prime is 331056049. The reversal of 331056005 is 500650133.

It can be written as a sum of positive squares in 2 ways, for example, as 114554209 + 216501796 = 10703^2 + 14714^2 .

It is not a de Polignac number, because 331056005 - 2² = 331056001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331056001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 675380 + ... + 675869.

It is an arithmetic number, because the mean of its divisors is an integer number (38510625).

Almost surely, 2^331056005 is an apocalyptic number.

331056005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

331056005 is a deficient number, since it is larger than the sum of its proper divisors (131071495).

331056005 is a wasteful number, since it uses less digits than its factorization.

331056005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351268 (or 1351261 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 331056005 is about 18194.9444901599. The cubic root of 331056005 is about 691.7786534372.

The spelling of 331056005 in words is "three hundred thirty-one million, fifty-six thousand, five".