730611545 has 4 divisors (see below), whose sum is σ = 876733860. Its totient is φ = 584489232.

The previous prime is 730611527. The next prime is 730611559. The reversal of 730611545 is 545116037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545116037 = 79 ⋅6900203.

It can be written as a sum of positive squares in 2 ways, for example, as 413878336 + 316733209 = 20344^2 + 17797^2 .

It is a cyclic number.

It is not a de Polignac number, because 730611545 - 2²⁶ = 663502681 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 3 ways as a sum of consecutive naturals, for example, 73061150 + ... + 73061159.

It is an arithmetic number, because the mean of its divisors is an integer number (219183465).

Almost surely, 2^730611545 is an apocalyptic number.

It is an amenable number.

730611545 is a deficient number, since it is larger than the sum of its proper divisors (146122315).

730611545 is a wasteful number, since it uses less digits than its factorization.

730611545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146122314.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 730611545 is about 27029.8269509814. The cubic root of 730611545 is about 900.6626991562.

The spelling of 730611545 in words is "seven hundred thirty million, six hundred eleven thousand, five hundred forty-five".