30645166 has 4 divisors (see below), whose sum is σ = 45967752. Its totient is φ = 15322582.

The previous prime is 30645161. The next prime is 30645187. The reversal of 30645166 is 66154603.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30645161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7661290 + ... + 7661293.

It is an arithmetic number, because the mean of its divisors is an integer number (11491938).

Almost surely, 2^30645166 is an apocalyptic number.

30645166 is a deficient number, since it is larger than the sum of its proper divisors (15322586).

30645166 is a wasteful number, since it uses less digits than its factorization.

30645166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15322585.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 30645166 is about 5535.8076194897. The cubic root of 30645166 is about 312.9348944398.

Adding to 30645166 its reverse (66154603), we get a palindrome (96799769).

The spelling of 30645166 in words is "thirty million, six hundred forty-five thousand, one hundred sixty-six".