30045136 has 20 divisors (see below), whose sum is σ = 63504864. Its totient is φ = 13656800.

The previous prime is 30045133. The next prime is 30045151. The reversal of 30045136 is 63154003.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30045133) 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 3 ways as a sum of consecutive naturals, for example, 85180 + ... + 85531.

Almost surely, 2^30045136 is an apocalyptic number.

It is an amenable number.

30045136 is an abundant number, since it is smaller than the sum of its proper divisors (33459728).

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

30045136 is a wasteful number, since it uses less digits than its factorization.

30045136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170730 (or 170724 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 30045136 is about 5481.3443606473. The cubic root of 30045136 is about 310.8790036722.

Adding to 30045136 its reverse (63154003), we get a palindrome (93199139).

The spelling of 30045136 in words is "thirty million, forty-five thousand, one hundred thirty-six".