213466145 has 16 divisors (see below), whose sum is σ = 262788240. Its totient is φ = 166406400.

The previous prime is 213466117. The next prime is 213466163. The reversal of 213466145 is 541664312.

It can be written as a sum of positive squares in 8 ways, for example, as 30459361 + 183006784 = 5519^2 + 13528^2 .

It is not a de Polignac number, because 213466145 - 2¹² = 213462049 is a prime.

It is a super-2 number, since 2×213466145² = 91135590122322050, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 30035 + ... + 36455.

It is an arithmetic number, because the mean of its divisors is an integer number (16424265).

Almost surely, 2^213466145 is an apocalyptic number.

It is an amenable number.

213466145 is a deficient number, since it is larger than the sum of its proper divisors (49322095).

213466145 is a wasteful number, since it uses less digits than its factorization.

213466145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596.

The product of its digits is 17280, while the sum is 32.

The square root of 213466145 is about 14610.4806560222. The cubic root of 213466145 is about 597.6446035753.

The spelling of 213466145 in words is "two hundred thirteen million, four hundred sixty-six thousand, one hundred forty-five".