30523144 has 16 divisors (see below), whose sum is σ = 57387600. Its totient is φ = 15219792.

The previous prime is 30523121. The next prime is 30523153. The reversal of 30523144 is 44132503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002 + ... + 8065.

It is an arithmetic number, because the mean of its divisors is an integer number (3586725).

Almost surely, 2^30523144 is an apocalyptic number.

It is an amenable number.

30523144 is a deficient number, since it is larger than the sum of its proper divisors (26864456).

30523144 is a wasteful number, since it uses less digits than its factorization.

30523144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10452 (or 10448 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30523144 is about 5524.7754705508. The cubic root of 30523144 is about 312.5189970318.

Adding to 30523144 its reverse (44132503), we get a palindrome (74655647).

The spelling of 30523144 in words is "thirty million, five hundred twenty-three thousand, one hundred forty-four".