30061005 has 16 divisors (see below), whose sum is σ = 51797760. Its totient is φ = 14799168.

The previous prime is 30060997. The next prime is 30061007. The reversal of 30061005 is 50016003.

It is not a de Polignac number, because 30061005 - 2³ = 30060997 is a prime.

It is a super-2 number, since 2×30061005² = 1807328043220050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30061007) 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, 76885 + ... + 77274.

It is an arithmetic number, because the mean of its divisors is an integer number (3237360).

Almost surely, 2^30061005 is an apocalyptic number.

It is an amenable number.

30061005 is a deficient number, since it is larger than the sum of its proper divisors (21736755).

30061005 is a wasteful number, since it uses less digits than its factorization.

30061005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154180.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 30061005 is about 5482.7917159053. The cubic root of 30061005 is about 310.9337265689.

Adding to 30061005 its reverse (50016003), we get a palindrome (80077008).

The spelling of 30061005 in words is "thirty million, sixty-one thousand, five".