213053933 has 4 divisors (see below), whose sum is σ = 213864288. Its totient is φ = 212243580.

The previous prime is 213053927. The next prime is 213053941. The reversal of 213053933 is 339350312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213053933 - 2⁸ = 213053677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213053896 and 213053905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213053963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404783 + ... + 405308.

It is an arithmetic number, because the mean of its divisors is an integer number (53466072).

Almost surely, 2^213053933 is an apocalyptic number.

It is an amenable number.

213053933 is a deficient number, since it is larger than the sum of its proper divisors (810355).

213053933 is an equidigital number, since it uses as much as digits as its factorization.

213053933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810354.

The product of its (nonzero) digits is 7290, while the sum is 29.

The square root of 213053933 is about 14596.3671165122. The cubic root of 213053933 is about 597.2596634990.

The spelling of 213053933 in words is "two hundred thirteen million, fifty-three thousand, nine hundred thirty-three".