729024139 has 2 divisors, whose sum is σ = 729024140. Its totient is φ = 729024138.

The previous prime is 729024113. The next prime is 729024143. The reversal of 729024139 is 931420927.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729024139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 729024098 and 729024107.

It is not a weakly prime, because it can be changed into another prime (729024199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364512069 + 364512070.

It is an arithmetic number, because the mean of its divisors is an integer number (364512070).

Almost surely, 2^729024139 is an apocalyptic number.

729024139 is a deficient number, since it is larger than the sum of its proper divisors (1).

729024139 is an equidigital number, since it uses as much as digits as its factorization.

729024139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 729024139 is about 27000.4470148181. The cubic root of 729024139 is about 900.0099336352.

The spelling of 729024139 in words is "seven hundred twenty-nine million, twenty-four thousand, one hundred thirty-nine".