213437065 has 8 divisors (see below), whose sum is σ = 259367040. Its totient is φ = 168587952.

The previous prime is 213437039. The next prime is 213437099. The reversal of 213437065 is 560734312.

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 213437065 - 2¹⁵ = 213404297 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 269779 + ... + 270568.

It is an arithmetic number, because the mean of its divisors is an integer number (32420880).

Almost surely, 2^213437065 is an apocalyptic number.

It is an amenable number.

213437065 is a deficient number, since it is larger than the sum of its proper divisors (45929975).

213437065 is an equidigital number, since it uses as much as digits as its factorization.

213437065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540431.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 213437065 is about 14609.4854461066. The cubic root of 213437065 is about 597.6174637614.

The spelling of 213437065 in words is "two hundred thirteen million, four hundred thirty-seven thousand, sixty-five".