30132140 has 12 divisors (see below), whose sum is σ = 63277536. Its totient is φ = 12052848.

The previous prime is 30132103. The next prime is 30132149. The reversal of 30132140 is 4123103.

It is not an unprimeable number, because it can be changed into a prime (30132149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753284 + ... + 753323.

It is an arithmetic number, because the mean of its divisors is an integer number (5273128).

Almost surely, 2^30132140 is an apocalyptic number.

It is an amenable number.

30132140 is an abundant number, since it is smaller than the sum of its proper divisors (33145396).

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

30132140 is a wasteful number, since it uses less digits than its factorization.

30132140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506616 (or 1506614 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30132140 is about 5489.2749976659. The cubic root of 30132140 is about 311.1787931923.

Adding to 30132140 its reverse (4123103), we get a palindrome (34255243).

The spelling of 30132140 in words is "thirty million, one hundred thirty-two thousand, one hundred forty".