30356161 has 8 divisors (see below), whose sum is σ = 34184448. Its totient is φ = 26706000.

The previous prime is 30356147. The next prime is 30356177. The reversal of 30356161 is 16165303.

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 30356161 - 2¹³ = 30347969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30356111) 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 7 ways as a sum of consecutive naturals, for example, 44170 + ... + 44851.

It is an arithmetic number, because the mean of its divisors is an integer number (4273056).

Almost surely, 2^30356161 is an apocalyptic number.

30356161 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30356161 is a deficient number, since it is larger than the sum of its proper divisors (3828287).

30356161 is a wasteful number, since it uses less digits than its factorization.

30356161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89063.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 30356161 is about 5509.6425473891. The cubic root of 30356161 is about 311.9480552630.

The spelling of 30356161 in words is "thirty million, three hundred fifty-six thousand, one hundred sixty-one".