30302161 has 8 divisors (see below), whose sum is σ = 30919104. Its totient is φ = 29690640.

The previous prime is 30302137. The next prime is 30302171. The reversal of 30302161 is 16120303.

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

It is a cyclic number.

It is not a de Polignac number, because 30302161 - 2⁷ = 30302033 is a prime.

It is a super-2 number, since 2×30302161² = 1836441922539842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30302101) 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, 11050 + ... + 13516.

It is an arithmetic number, because the mean of its divisors is an integer number (3864888).

Almost surely, 2^30302161 is an apocalyptic number.

It is an amenable number.

30302161 is a deficient number, since it is larger than the sum of its proper divisors (616943).

30302161 is a wasteful number, since it uses less digits than its factorization.

30302161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 30302161 is about 5504.7398666967. The cubic root of 30302161 is about 311.7629726434.

Adding to 30302161 its reverse (16120303), we get a palindrome (46422464).

The spelling of 30302161 in words is "thirty million, three hundred two thousand, one hundred sixty-one".