30705153 has 8 divisors (see below), whose sum is σ = 42046848. Its totient is φ = 19916784.

The previous prime is 30705149. The next prime is 30705163. The reversal of 30705153 is 35150703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30705153 - 2² = 30705149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30705133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138201 + ... + 138422.

It is an arithmetic number, because the mean of its divisors is an integer number (5255856).

Almost surely, 2^30705153 is an apocalyptic number.

It is an amenable number.

30705153 is a deficient number, since it is larger than the sum of its proper divisors (11341695).

30705153 is a wasteful number, since it uses less digits than its factorization.

30705153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276663.

The product of its (nonzero) digits is 1575, while the sum is 24.

The square root of 30705153 is about 5541.2230599390. The cubic root of 30705153 is about 313.1389482673.

Adding to 30705153 its reverse (35150703), we get a palindrome (65855856).

The spelling of 30705153 in words is "thirty million, seven hundred five thousand, one hundred fifty-three".