7315040345 has 4 divisors (see below), whose sum is σ = 8778048420. Its totient is φ = 5852032272.

The previous prime is 7315040251. The next prime is 7315040371. The reversal of 7315040345 is 5430405137.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5430405137 = 4789 ⋅1133933.

It can be written as a sum of positive squares in 2 ways, for example, as 4342282816 + 2972757529 = 65896^2 + 54523^2 .

It is a cyclic number.

It is not a de Polignac number, because 7315040345 - 2¹⁰ = 7315039321 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 731504030 + ... + 731504039.

It is an arithmetic number, because the mean of its divisors is an integer number (2194512105).

Almost surely, 2^7315040345 is an apocalyptic number.

It is an amenable number.

7315040345 is a deficient number, since it is larger than the sum of its proper divisors (1463008075).

7315040345 is a wasteful number, since it uses less digits than its factorization.

7315040345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463008074.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 7315040345 is about 85528.0091256660. The cubic root of 7315040345 is about 1941.2087575426.

The spelling of 7315040345 in words is "seven billion, three hundred fifteen million, forty thousand, three hundred forty-five".