213016365 has 32 divisors (see below), whose sum is σ = 382623360. Its totient is φ = 112430592.

The previous prime is 213016351. The next prime is 213016393. The reversal of 213016365 is 563610312.

213016365 is a `hidden beast` number, since 21 + 3 + 0 + 1 + 636 + 5 = 666.

It is not a de Polignac number, because 213016365 - 2⁶ = 213016301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4962 + ... + 21228.

It is an arithmetic number, because the mean of its divisors is an integer number (11956980).

Almost surely, 2^213016365 is an apocalyptic number.

It is an amenable number.

213016365 is a deficient number, since it is larger than the sum of its proper divisors (169606995).

213016365 is a wasteful number, since it uses less digits than its factorization.

213016365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16378 (or 16372 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 213016365 is about 14595.0801642197. The cubic root of 213016365 is about 597.2245563164.

Adding to 213016365 its reverse (563610312), we get a palindrome (776626677).

The spelling of 213016365 in words is "two hundred thirteen million, sixteen thousand, three hundred sixty-five".