30045225172 has 12 divisors (see below), whose sum is σ = 54275245696. Its totient is φ = 14538012120.

The previous prime is 30045225167. The next prime is 30045225191. The reversal of 30045225172 is 27152254003.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121149978 + ... + 121150225.

Almost surely, 2^30045225172 is an apocalyptic number.

It is an amenable number.

30045225172 is a deficient number, since it is larger than the sum of its proper divisors (24230020524).

30045225172 is a wasteful number, since it uses less digits than its factorization.

30045225172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242300238 (or 242300236 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 30045225172 its reverse (27152254003), we get a palindrome (57197479175).

The spelling of 30045225172 in words is "thirty billion, forty-five million, two hundred twenty-five thousand, one hundred seventy-two".