213011733 has 8 divisors (see below), whose sum is σ = 309835296. Its totient is φ = 129098000.

The previous prime is 213011731. The next prime is 213011749. The reversal of 213011733 is 337110312.

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 213011733 - 2¹ = 213011731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213011731) by changing a digit.

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, 3227418 + ... + 3227483.

It is an arithmetic number, because the mean of its divisors is an integer number (38729412).

Almost surely, 2^213011733 is an apocalyptic number.

It is an amenable number.

213011733 is a deficient number, since it is larger than the sum of its proper divisors (96823563).

213011733 is a wasteful number, since it uses less digits than its factorization.

213011733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454915.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 213011733 is about 14594.9214797477. The cubic root of 213011733 is about 597.2202274406.

The spelling of 213011733 in words is "two hundred thirteen million, eleven thousand, seven hundred thirty-three".