30134729 has 2 divisors, whose sum is σ = 30134730. Its totient is φ = 30134728.

The previous prime is 30134723. The next prime is 30134747. The reversal of 30134729 is 92743103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30030400 + 104329 = 5480^2 + 323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30134729 is a prime.

It is not a weakly prime, because it can be changed into another prime (30134723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15067364 + 15067365.

It is an arithmetic number, because the mean of its divisors is an integer number (15067365).

Almost surely, 2^30134729 is an apocalyptic number.

It is an amenable number.

30134729 is a deficient number, since it is larger than the sum of its proper divisors (1).

30134729 is an equidigital number, since it uses as much as digits as its factorization.

30134729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 30134729 is about 5489.5108160928. The cubic root of 30134729 is about 311.1877052579.

The spelling of 30134729 in words is "thirty million, one hundred thirty-four thousand, seven hundred twenty-nine".