30518132 has 12 divisors (see below), whose sum is σ = 54649056. Its totient is φ = 14904120.

The previous prime is 30518129. The next prime is 30518177. The reversal of 30518132 is 23181503.

It is a junction number, because it is equal to n+sod(n) for n = 30518098 and 30518107.

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, 88544 + ... + 88887.

It is an arithmetic number, because the mean of its divisors is an integer number (4554088).

Almost surely, 2^30518132 is an apocalyptic number.

It is an amenable number.

30518132 is a deficient number, since it is larger than the sum of its proper divisors (24130924).

30518132 is a wasteful number, since it uses less digits than its factorization.

30518132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177478 (or 177476 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 30518132 is about 5524.3218588348. The cubic root of 30518132 is about 312.5018905486.

Adding to 30518132 its reverse (23181503), we get a palindrome (53699635).

The spelling of 30518132 in words is "thirty million, five hundred eighteen thousand, one hundred thirty-two".