30252145 has 16 divisors (see below), whose sum is σ = 45260928. Its totient is φ = 18858240.

The previous prime is 30252143. The next prime is 30252169. The reversal of 30252145 is 54125203.

It is not a de Polignac number, because 30252145 - 2¹ = 30252143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30252143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38904 + ... + 39673.

It is an arithmetic number, because the mean of its divisors is an integer number (2828808).

Almost surely, 2^30252145 is an apocalyptic number.

30252145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30252145 is a deficient number, since it is larger than the sum of its proper divisors (15008783).

30252145 is a wasteful number, since it uses less digits than its factorization.

30252145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78600.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 30252145 is about 5500.1949965433. The cubic root of 30252145 is about 311.5913487568.

Adding to 30252145 its reverse (54125203), we get a palindrome (84377348).

The spelling of 30252145 in words is "thirty million, two hundred fifty-two thousand, one hundred forty-five".