30136125 has 16 divisors (see below), whose sum is σ = 50147136. Its totient is φ = 16072400.

The previous prime is 30136103. The next prime is 30136129. The reversal of 30136125 is 52163103.

It is not a de Polignac number, because 30136125 - 2⁸ = 30135869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30136129) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 39807 + ... + 40556.

It is an arithmetic number, because the mean of its divisors is an integer number (3134196).

Almost surely, 2^30136125 is an apocalyptic number.

It is an amenable number.

30136125 is a deficient number, since it is larger than the sum of its proper divisors (20011011).

30136125 is an equidigital number, since it uses as much as digits as its factorization.

30136125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80381 (or 80371 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 30136125 is about 5489.6379662051. The cubic root of 30136125 is about 311.1925104704.

Adding to 30136125 its reverse (52163103), we get a palindrome (82299228).

The spelling of 30136125 in words is "thirty million, one hundred thirty-six thousand, one hundred twenty-five".