30232161 has 12 divisors (see below), whose sum is σ = 45077760. Its totient is φ = 19504440.

The previous prime is 30232159. The next prime is 30232183. The reversal of 30232161 is 16123203.

It is not a de Polignac number, because 30232161 - 2¹ = 30232159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30232121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53901 + ... + 54458.

It is an arithmetic number, because the mean of its divisors is an integer number (3756480).

Almost surely, 2^30232161 is an apocalyptic number.

30232161 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30232161 is a deficient number, since it is larger than the sum of its proper divisors (14845599).

30232161 is a wasteful number, since it uses less digits than its factorization.

30232161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108396 (or 108393 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30232161 is about 5498.3780335659. The cubic root of 30232161 is about 311.5227231753.

Adding to 30232161 its reverse (16123203), we get a palindrome (46355364).

It can be divided in two parts, 3023 and 2161, that added together give a square (5184 = 72²).

The spelling of 30232161 in words is "thirty million, two hundred thirty-two thousand, one hundred sixty-one".