730581145 has 8 divisors (see below), whose sum is σ = 1001939904. Its totient is φ = 500969904.

The previous prime is 730581139. The next prime is 730581149. The reversal of 730581145 is 541185037.

It is a happy number.

730581145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 730581145 - 2²⁵ = 697026713 is a prime.

It is a super-2 number, since 2×730581145² = 1067497618859022050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 730581145.

It is not an unprimeable number, because it can be changed into a prime (730581149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10436839 + ... + 10436908.

It is an arithmetic number, because the mean of its divisors is an integer number (125242488).

Almost surely, 2^730581145 is an apocalyptic number.

It is an amenable number.

730581145 is a deficient number, since it is larger than the sum of its proper divisors (271358759).

730581145 is a wasteful number, since it uses less digits than its factorization.

730581145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20873759.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 730581145 is about 27029.2646033887. The cubic root of 730581145 is about 900.6502070980.

The spelling of 730581145 in words is "seven hundred thirty million, five hundred eighty-one thousand, one hundred forty-five".