30125235 has 32 divisors (see below), whose sum is σ = 55595520. Its totient is φ = 13644288.

The previous prime is 30125231. The next prime is 30125237. The reversal of 30125235 is 53252103.

It is not a de Polignac number, because 30125235 - 2² = 30125231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30125231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10596 + ... + 13134.

It is an arithmetic number, because the mean of its divisors is an integer number (1737360).

Almost surely, 2^30125235 is an apocalyptic number.

30125235 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30125235 is a deficient number, since it is larger than the sum of its proper divisors (25470285).

30125235 is a wasteful number, since it uses less digits than its factorization.

30125235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 30125235 is about 5488.6460078967. The cubic root of 30125235 is about 311.1550217452.

Adding to 30125235 its reverse (53252103), we get a palindrome (83377338).

The spelling of 30125235 in words is "thirty million, one hundred twenty-five thousand, two hundred thirty-five".