30036081 has 4 divisors (see below), whose sum is σ = 40048112. Its totient is φ = 20024052.

The previous prime is 30036079. The next prime is 30036101. The reversal of 30036081 is 18063003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30036081 - 2¹ = 30036079 is a prime.

It is a super-2 number, since 2×30036081² = 1804332323677122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30035081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5006011 + ... + 5006016.

It is an arithmetic number, because the mean of its divisors is an integer number (10012028).

Almost surely, 2^30036081 is an apocalyptic number.

It is an amenable number.

30036081 is a deficient number, since it is larger than the sum of its proper divisors (10012031).

30036081 is a wasteful number, since it uses less digits than its factorization.

30036081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012030.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30036081 is about 5480.5183149042. The cubic root of 30036081 is about 310.8477696402.

Adding to 30036081 its reverse (18063003), we get a palindrome (48099084).

The spelling of 30036081 in words is "thirty million, thirty-six thousand, eighty-one".