30112655 has 8 divisors (see below), whose sum is σ = 37016784. Its totient is φ = 23502400.

The previous prime is 30112651. The next prime is 30112657. The reversal of 30112655 is 55621103.

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

It is not a de Polignac number, because 30112655 - 2² = 30112651 is a prime.

It is a super-2 number, since 2×30112655² = 1813543982298050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30112655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112651) 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, 73241 + ... + 73650.

It is an arithmetic number, because the mean of its divisors is an integer number (4627098).

Almost surely, 2^30112655 is an apocalyptic number.

30112655 is a deficient number, since it is larger than the sum of its proper divisors (6904129).

30112655 is a wasteful number, since it uses less digits than its factorization.

30112655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146937.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 30112655 is about 5487.4998861048. The cubic root of 30112655 is about 311.1117039624. Note that the first 3 decimals are identical.

Adding to 30112655 its reverse (55621103), we get a palindrome (85733758).

The spelling of 30112655 in words is "thirty million, one hundred twelve thousand, six hundred fifty-five".