30130975 has 24 divisors (see below), whose sum is σ = 42997248. Its totient is φ = 20517600.

The previous prime is 30130973. The next prime is 30130981. The reversal of 30130975 is 57903103.

It is not a de Polignac number, because 30130975 - 2¹ = 30130973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30130973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28710 + ... + 29740.

It is an arithmetic number, because the mean of its divisors is an integer number (1791552).

Almost surely, 2^30130975 is an apocalyptic number.

30130975 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30130975 is a deficient number, since it is larger than the sum of its proper divisors (12866273).

30130975 is a wasteful number, since it uses less digits than its factorization.

30130975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 30130975 is about 5489.1688806230. The cubic root of 30130975 is about 311.1747827684.

The spelling of 30130975 in words is "thirty million, one hundred thirty thousand, nine hundred seventy-five".