30642135 has 8 divisors (see below), whose sum is σ = 49027440. Its totient is φ = 16342464.

The previous prime is 30642127. The next prime is 30642137. The reversal of 30642135 is 53124603.

It is a happy number.

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

It is not a de Polignac number, because 30642135 - 2³ = 30642127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30642137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021390 + ... + 1021419.

It is an arithmetic number, because the mean of its divisors is an integer number (6128430).

Almost surely, 2^30642135 is an apocalyptic number.

30642135 is a deficient number, since it is larger than the sum of its proper divisors (18385305).

30642135 is a wasteful number, since it uses less digits than its factorization.

30642135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042817.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 30642135 is about 5535.5338495939. The cubic root of 30642135 is about 312.9245770220.

Adding to 30642135 its reverse (53124603), we get a palindrome (83766738).

The spelling of 30642135 in words is "thirty million, six hundred forty-two thousand, one hundred thirty-five".