30025134 has 16 divisors (see below), whose sum is σ = 66722640. Its totient is φ = 10008360.

The previous prime is 30025133. The next prime is 30025147. The reversal of 30025134 is 43152003.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30025133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 277957 + ... + 278064.

It is an arithmetic number, because the mean of its divisors is an integer number (4170165).

Almost surely, 2^30025134 is an apocalyptic number.

30025134 is an abundant number, since it is smaller than the sum of its proper divisors (36697506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30025134 is a wasteful number, since it uses less digits than its factorization.

30025134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556032 (or 556026 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30025134 is about 5479.5195044821. The cubic root of 30025134 is about 310.8100010198.

Adding to 30025134 its reverse (43152003), we get a palindrome (73177137).

The spelling of 30025134 in words is "thirty million, twenty-five thousand, one hundred thirty-four".