213065433 has 24 divisors (see below), whose sum is σ = 352708928. Its totient is φ = 121411872.

The previous prime is 213065431. The next prime is 213065443. The reversal of 213065433 is 334560312.

It is a happy number.

213065433 is a `hidden beast` number, since 2 + 1 + 3 + 0 + 654 + 3 + 3 = 666.

It is not a de Polignac number, because 213065433 - 2¹ = 213065431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213065397 and 213065406.

It is not an unprimeable number, because it can be changed into a prime (213065431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18966 + ... + 28032.

Almost surely, 2^213065433 is an apocalyptic number.

It is an amenable number.

213065433 is a deficient number, since it is larger than the sum of its proper divisors (139643495).

213065433 is a wasteful number, since it uses less digits than its factorization.

213065433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9453 (or 9450 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 213065433 is about 14596.7610448346. The cubic root of 213065433 is about 597.2704093893.

The spelling of 213065433 in words is "two hundred thirteen million, sixty-five thousand, four hundred thirty-three".