30396161 has 4 divisors (see below), whose sum is σ = 30514692. Its totient is φ = 30277632.

The previous prime is 30396139. The next prime is 30396199. The reversal of 30396161 is 16169303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22800625 + 7595536 = 4775^2 + 2756^2 .

It is a cyclic number.

It is not a de Polignac number, because 30396161 - 2⁶ = 30396097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30396101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58880 + ... + 59393.

It is an arithmetic number, because the mean of its divisors is an integer number (7628673).

Almost surely, 2^30396161 is an apocalyptic number.

It is an amenable number.

30396161 is a deficient number, since it is larger than the sum of its proper divisors (118531).

30396161 is a wasteful number, since it uses less digits than its factorization.

30396161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118530.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 30396161 is about 5513.2713519289. The cubic root of 30396161 is about 312.0850120359.

It can be divided in two parts, 30396 and 161, that multiplied together give a triangular number (4893756 = T₃₁₂₈).

The spelling of 30396161 in words is "thirty million, three hundred ninety-six thousand, one hundred sixty-one".