730545 has 16 divisors (see below), whose sum is σ = 1181952. Its totient is φ = 385280.

The previous prime is 730537. The next prime is 730553. The reversal of 730545 is 545037.

730545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (730537) and next prime (730553).

It is not a de Polignac number, because 730545 - 2³ = 730537 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1480 + ... + 1910.

It is an arithmetic number, because the mean of its divisors is an integer number (73872).

2⁷³⁰⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

730545 is a deficient number, since it is larger than the sum of its proper divisors (451407).

730545 is a wasteful number, since it uses less digits than its factorization.

730545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 730545 is about 854.7192521524. The cubic root of 730545 is about 90.0635353836.

It can be divided in two parts, 730 and 545, that added together give a triangular number (1275 = T₅₀).

The spelling of 730545 in words is "seven hundred thirty thousand, five hundred forty-five".