213641733 has 8 divisors (see below), whose sum is σ = 297240768. Its totient is φ = 136235264.

The previous prime is 213641723. The next prime is 213641777. The reversal of 213641733 is 337146312.

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 213641733 - 2⁹ = 213641221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213641733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213641723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1548060 + ... + 1548197.

It is an arithmetic number, because the mean of its divisors is an integer number (37155096).

Almost surely, 2^213641733 is an apocalyptic number.

213641733 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

213641733 is a deficient number, since it is larger than the sum of its proper divisors (83599035).

213641733 is a wasteful number, since it uses less digits than its factorization.

213641733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096283.

The product of its digits is 9072, while the sum is 30.

The square root of 213641733 is about 14616.4883949600. The cubic root of 213641733 is about 597.8084241833.

The spelling of 213641733 in words is "two hundred thirteen million, six hundred forty-one thousand, seven hundred thirty-three".