30181152 has 48 divisors (see below), whose sum is σ = 82676160. Its totient is φ = 9622272.

The previous prime is 30181133. The next prime is 30181157. The reversal of 30181152 is 25118103.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (30181157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4627 + ... + 9042.

It is an arithmetic number, because the mean of its divisors is an integer number (1722420).

Almost surely, 2^30181152 is an apocalyptic number.

30181152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30181152 is an abundant number, since it is smaller than the sum of its proper divisors (52495008).

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

30181152 is a wasteful number, since it uses less digits than its factorization.

30181152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13705 (or 13697 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 30181152 is about 5493.7375255831. The cubic root of 30181152 is about 311.3474197073.

Adding to 30181152 its reverse (25118103), we get a palindrome (55299255).

The spelling of 30181152 in words is "thirty million, one hundred eighty-one thousand, one hundred fifty-two".