30678135 has 16 divisors (see below), whose sum is σ = 50227584. Its totient is φ = 15980832.

The previous prime is 30678133. The next prime is 30678139. The reversal of 30678135 is 53187603.

It is a happy number.

It is not a de Polignac number, because 30678135 - 2¹ = 30678133 is a prime.

It is a super-2 number, since 2×30678135² = 1882295934156450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30678096 and 30678105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30678133) 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, 23137 + ... + 24426.

It is an arithmetic number, because the mean of its divisors is an integer number (3139224).

Almost surely, 2^30678135 is an apocalyptic number.

30678135 is a deficient number, since it is larger than the sum of its proper divisors (19549449).

30678135 is a wasteful number, since it uses less digits than its factorization.

30678135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47614.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 30678135 is about 5538.7846139744. The cubic root of 30678135 is about 313.0470758401.

The spelling of 30678135 in words is "thirty million, six hundred seventy-eight thousand, one hundred thirty-five".