30524149 has 4 divisors (see below), whose sum is σ = 31349164. Its totient is φ = 29699136.

The previous prime is 30524141. The next prime is 30524159. The reversal of 30524149 is 94142503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15547249 + 14976900 = 3943^2 + 3870^2 .

It is a cyclic number.

It is not a de Polignac number, because 30524149 - 2³ = 30524141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30524141) 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, 412452 + ... + 412525.

It is an arithmetic number, because the mean of its divisors is an integer number (7837291).

Almost surely, 2^30524149 is an apocalyptic number.

It is an amenable number.

30524149 is a deficient number, since it is larger than the sum of its proper divisors (825015).

30524149 is an equidigital number, since it uses as much as digits as its factorization.

30524149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825014.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 30524149 is about 5524.8664237246. The cubic root of 30524149 is about 312.5224269771.

The spelling of 30524149 in words is "thirty million, five hundred twenty-four thousand, one hundred forty-nine".