30148481 has 8 divisors (see below), whose sum is σ = 33162528. Its totient is φ = 27406500.

The previous prime is 30148453. The next prime is 30148493. The reversal of 30148481 is 18484103.

It is a de Polignac number, because none of the positive numbers 2^k-30148481 is a prime.

It is a super-2 number, since 2×30148481² = 1817861813214722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30148411) 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, 9995 + ... + 12656.

It is an arithmetic number, because the mean of its divisors is an integer number (4145316).

Almost surely, 2^30148481 is an apocalyptic number.

It is an amenable number.

30148481 is a deficient number, since it is larger than the sum of its proper divisors (3014047).

30148481 is an equidigital number, since it uses as much as digits as its factorization.

30148481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22684 (or 22662 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 30148481 is about 5490.7632438487. The cubic root of 30148481 is about 311.2350349520.

The spelling of 30148481 in words is "thirty million, one hundred forty-eight thousand, four hundred eighty-one".