30153172 has 24 divisors (see below), whose sum is σ = 63854784. Its totient is φ = 12162432.

The previous prime is 30153143. The next prime is 30153181. The reversal of 30153172 is 27135103.

It is a super-3 number, since 3×30153172³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31198 + ... + 32149.

It is an arithmetic number, because the mean of its divisors is an integer number (2660616).

Almost surely, 2^30153172 is an apocalyptic number.

It is an amenable number.

30153172 is an abundant number, since it is smaller than the sum of its proper divisors (33701612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30153172 is a wasteful number, since it uses less digits than its factorization.

30153172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63375 (or 63373 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 30153172 is about 5491.1903991758. The cubic root of 30153172 is about 311.2511764820.

Adding to 30153172 its reverse (27135103), we get a palindrome (57288275).

The spelling of 30153172 in words is "thirty million, one hundred fifty-three thousand, one hundred seventy-two".