730121039 has 12 divisors (see below), whose sum is σ = 766099656. Its totient is φ = 695766192.

The previous prime is 730121003. The next prime is 730121053. The reversal of 730121039 is 930121037.

730121039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 730121039 - 2²⁴ = 713343823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 730120999 and 730121017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730121059) 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, 147269 + ... + 152145.

It is an arithmetic number, because the mean of its divisors is an integer number (63841638).

Almost surely, 2^730121039 is an apocalyptic number.

730121039 is a deficient number, since it is larger than the sum of its proper divisors (35978617).

730121039 is a wasteful number, since it uses less digits than its factorization.

730121039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206 (or 5183 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 730121039 is about 27020.7520065597. The cubic root of 730121039 is about 900.4610966480.

The spelling of 730121039 in words is "seven hundred thirty million, one hundred twenty-one thousand, thirty-nine".