58138729 has 16 divisors (see below), whose sum is σ = 65543616. Its totient is φ = 51105600.

The previous prime is 58138723. The next prime is 58138753. The reversal of 58138729 is 92783185.

58138729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 58138729 - 2⁹ = 58138217 is a prime.

It is a super-2 number, since 2×58138729² = 6760223619470882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58138723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85539 + ... + 86215.

It is an arithmetic number, because the mean of its divisors is an integer number (4096476).

Almost surely, 2^58138729 is an apocalyptic number.

It is an amenable number.

58138729 is a deficient number, since it is larger than the sum of its proper divisors (7404887).

58138729 is a wasteful number, since it uses less digits than its factorization.

58138729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936.

The product of its digits is 120960, while the sum is 43.

The square root of 58138729 is about 7624.8756711175. The cubic root of 58138729 is about 387.3960406518.

The spelling of 58138729 in words is "fifty-eight million, one hundred thirty-eight thousand, seven hundred twenty-nine".