729111045 has 32 divisors (see below), whose sum is σ = 1330221312. Its totient is φ = 337830912.

The previous prime is 729111043. The next prime is 729111049. The reversal of 729111045 is 540111927.

729111045 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 729111045 - 2¹ = 729111043 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729111043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106657 + ... + 113286.

It is an arithmetic number, because the mean of its divisors is an integer number (41569416).

Almost surely, 2^729111045 is an apocalyptic number.

It is an amenable number.

729111045 is a deficient number, since it is larger than the sum of its proper divisors (601110267).

729111045 is a wasteful number, since it uses less digits than its factorization.

729111045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219981.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 729111045 is about 27002.0563105849. The cubic root of 729111045 is about 900.0456952108.

It can be divided in two parts, 7291 and 11045, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 729111045 in words is "seven hundred twenty-nine million, one hundred eleven thousand, forty-five".