30146521 has 8 divisors (see below), whose sum is σ = 32508000. Its totient is φ = 27862560.

The previous prime is 30146471. The next prime is 30146531. The reversal of 30146521 is 12564103.

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

It is a cyclic number.

It is not a de Polignac number, because 30146521 - 2¹⁷ = 30015449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30146492 and 30146501.

It is not an unprimeable number, because it can be changed into a prime (30146531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18571 + ... + 20128.

It is an arithmetic number, because the mean of its divisors is an integer number (4063500).

Almost surely, 2^30146521 is an apocalyptic number.

It is an amenable number.

30146521 is a deficient number, since it is larger than the sum of its proper divisors (2361479).

30146521 is a wasteful number, since it uses less digits than its factorization.

30146521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38759.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 30146521 is about 5490.5847593858. The cubic root of 30146521 is about 311.2282901800.

The spelling of 30146521 in words is "thirty million, one hundred forty-six thousand, five hundred twenty-one".