30125481 has 8 divisors (see below), whose sum is σ = 40197024. Its totient is φ = 20068800.

The previous prime is 30125471. The next prime is 30125483. The reversal of 30125481 is 18452103.

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

It is not a de Polignac number, because 30125481 - 2¹³ = 30117289 is a prime.

It is a super-2 number, since 2×30125481² = 1815089210962722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30125483) 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, 2506 + ... + 8156.

It is an arithmetic number, because the mean of its divisors is an integer number (5024628).

Almost surely, 2^30125481 is an apocalyptic number.

It is an amenable number.

30125481 is a deficient number, since it is larger than the sum of its proper divisors (10071543).

30125481 is a wasteful number, since it uses less digits than its factorization.

30125481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7431.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 30125481 is about 5488.6684177494. The cubic root of 30125481 is about 311.1558686977.

Adding to 30125481 its reverse (18452103), we get a palindrome (48577584).

The spelling of 30125481 in words is "thirty million, one hundred twenty-five thousand, four hundred eighty-one".