30132705 has 16 divisors (see below), whose sum is σ = 48291264. Its totient is φ = 16044480.

The previous prime is 30132703. The next prime is 30132709. The reversal of 30132705 is 50723103.

It is a happy number.

It is not a de Polignac number, because 30132705 - 2¹ = 30132703 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30132701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10927 + ... + 13403.

It is an arithmetic number, because the mean of its divisors is an integer number (3018204).

Almost surely, 2^30132705 is an apocalyptic number.

It is an amenable number.

30132705 is a deficient number, since it is larger than the sum of its proper divisors (18158559).

30132705 is a wasteful number, since it uses less digits than its factorization.

30132705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 30132705 is about 5489.3264614158. The cubic root of 30132705 is about 311.1807381247.

Adding to 30132705 its reverse (50723103), we get a palindrome (80855808).

The spelling of 30132705 in words is "thirty million, one hundred thirty-two thousand, seven hundred five".