30729135 has 16 divisors (see below), whose sum is σ = 50095584. Its totient is φ = 16079232.

The previous prime is 30729089. The next prime is 30729143. The reversal of 30729135 is 53192703.

It is not a de Polignac number, because 30729135 - 2⁹ = 30728623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18532 + ... + 20121.

It is an arithmetic number, because the mean of its divisors is an integer number (3130974).

Almost surely, 2^30729135 is an apocalyptic number.

30729135 is a deficient number, since it is larger than the sum of its proper divisors (19366449).

30729135 is a wasteful number, since it uses less digits than its factorization.

30729135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38714.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 30729135 is about 5543.3866002652. The cubic root of 30729135 is about 313.2204518939.

The spelling of 30729135 in words is "thirty million, seven hundred twenty-nine thousand, one hundred thirty-five".