30166145 has 4 divisors (see below), whose sum is σ = 36199380. Its totient is φ = 24132912.

The previous prime is 30166139. The next prime is 30166153. The reversal of 30166145 is 54166103.

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 16096144 + 14070001 = 4012^2 + 3751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30166145 is a prime.

It is a super-2 number, since 2×30166145² = 1819992608322050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3016610 + ... + 3016619.

It is an arithmetic number, because the mean of its divisors is an integer number (9049845).

Almost surely, 2^30166145 is an apocalyptic number.

It is an amenable number.

30166145 is a deficient number, since it is larger than the sum of its proper divisors (6033235).

30166145 is an equidigital number, since it uses as much as digits as its factorization.

30166145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6033234.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 30166145 is about 5492.3715278557. The cubic root of 30166145 is about 311.2958073041.

The spelling of 30166145 in words is "thirty million, one hundred sixty-six thousand, one hundred forty-five".