30750130 has 8 divisors (see below), whose sum is σ = 55350252. Its totient is φ = 12300048.

The previous prime is 30750107. The next prime is 30750133. The reversal of 30750130 is 3105703.

It can be written as a sum of positive squares in 2 ways, for example, as 30724849 + 25281 = 5543^2 + 159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30750098 and 30750107.

It is not an unprimeable number, because it can be changed into a prime (30750133) 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, 1537497 + ... + 1537516.

Almost surely, 2^30750130 is an apocalyptic number.

30750130 is a deficient number, since it is larger than the sum of its proper divisors (24600122).

30750130 is a wasteful number, since it uses less digits than its factorization.

30750130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075020.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 30750130 is about 5545.2799748976. The cubic root of 30750130 is about 313.2917692968.

Adding to 30750130 its reverse (3105703), we get a palindrome (33855833).

The spelling of 30750130 in words is "thirty million, seven hundred fifty thousand, one hundred thirty".