7145331305 has 32 divisors (see below), whose sum is σ = 9876625920. Its totient is φ = 4861117440.

The previous prime is 7145331253. The next prime is 7145331359. The reversal of 7145331305 is 5031335417.

It is not a de Polignac number, because 7145331305 - 2¹⁰ = 7145330281 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4798001 + ... + 4799489.

It is an arithmetic number, because the mean of its divisors is an integer number (308644560).

Almost surely, 2^7145331305 is an apocalyptic number.

It is an amenable number.

7145331305 is a deficient number, since it is larger than the sum of its proper divisors (2731294615).

7145331305 is a wasteful number, since it uses less digits than its factorization.

7145331305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 7145331305 is about 84530.0615461742. The cubic root of 7145331305 is about 1926.0791210428.

The spelling of 7145331305 in words is "seven billion, one hundred forty-five million, three hundred thirty-one thousand, three hundred five".