30148456 has 16 divisors (see below), whose sum is σ = 60876900. Its totient is φ = 13914624.

The previous prime is 30148453. The next prime is 30148493. The reversal of 30148456 is 65484103.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24700900 + 5447556 = 4970^2 + 2334^2 .

It is not an unprimeable number, because it can be changed into a prime (30148453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144841 + ... + 145048.

Almost surely, 2^30148456 is an apocalyptic number.

It is an amenable number.

30148456 is an abundant number, since it is smaller than the sum of its proper divisors (30728444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30148456 is a wasteful number, since it uses less digits than its factorization.

30148456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289908 (or 289904 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 30148456 is about 5490.7609672977. The cubic root of 30148456 is about 311.2349489235.

The spelling of 30148456 in words is "thirty million, one hundred forty-eight thousand, four hundred fifty-six".