30001156 has 12 divisors (see below), whose sum is σ = 52641792. Its totient is φ = 14960648.

The previous prime is 30001151. The next prime is 30001157. The reversal of 30001156 is 65110003.

It is a super-2 number, since 2×30001156² = 1800138722672672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30001151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8260 + ... + 11323.

It is an arithmetic number, because the mean of its divisors is an integer number (4386816).

Almost surely, 2^30001156 is an apocalyptic number.

It is an amenable number.

30001156 is a deficient number, since it is larger than the sum of its proper divisors (22640636).

30001156 is a wasteful number, since it uses less digits than its factorization.

30001156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19970 (or 19968 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 30001156 is about 5477.3311019145. The cubic root of 30001156 is about 310.7272416117.

Adding to 30001156 its reverse (65110003), we get a palindrome (95111159).

The spelling of 30001156 in words is "thirty million, one thousand, one hundred fifty-six".