30012081 has 8 divisors (see below), whose sum is σ = 43653984. Its totient is φ = 18189120.

The previous prime is 30012029. The next prime is 30012107. The reversal of 30012081 is 18021003.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30012081 - 2¹¹ = 30010033 is a prime.

It is a super-2 number, since 2×30012081² = 1801450011901122, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30012081.

It is not an unprimeable number, because it can be changed into a prime (30012781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454696 + ... + 454761.

It is an arithmetic number, because the mean of its divisors is an integer number (5456748).

Almost surely, 2^30012081 is an apocalyptic number.

It is an amenable number.

30012081 is a deficient number, since it is larger than the sum of its proper divisors (13641903).

30012081 is a wasteful number, since it uses less digits than its factorization.

30012081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909471.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 30012081 is about 5478.3283034152. The cubic root of 30012081 is about 310.7649544155.

Adding to 30012081 its reverse (18021003), we get a palindrome (48033084).

The spelling of 30012081 in words is "thirty million, twelve thousand, eighty-one".