30145852 has 24 divisors (see below), whose sum is σ = 57762432. Its totient is φ = 13652400.

The previous prime is 30145831. The next prime is 30145883. The reversal of 30145852 is 25854103.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 30145852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12583 + ... + 14785.

It is an arithmetic number, because the mean of its divisors is an integer number (2406768).

Almost surely, 2^30145852 is an apocalyptic number.

It is an amenable number.

30145852 is a deficient number, since it is larger than the sum of its proper divisors (27616580).

30145852 is a wasteful number, since it uses less digits than its factorization.

30145852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529 (or 2527 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 30145852 is about 5490.5238365752. The cubic root of 30145852 is about 311.2259879434.

Adding to 30145852 its reverse (25854103), we get a palindrome (55999955).

The spelling of 30145852 in words is "thirty million, one hundred forty-five thousand, eight hundred fifty-two".