213505113 has 8 divisors (see below), whose sum is σ = 297050688. Its totient is φ = 136148144.

The previous prime is 213505111. The next prime is 213505121. The reversal of 213505113 is 311505312.

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 213505113 - 2¹ = 213505111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213505113.

It is not an unprimeable number, because it can be changed into a prime (213505111) 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, 1547070 + ... + 1547207.

It is an arithmetic number, because the mean of its divisors is an integer number (37131336).

Almost surely, 2^213505113 is an apocalyptic number.

213505113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

213505113 is a deficient number, since it is larger than the sum of its proper divisors (83545575).

213505113 is a wasteful number, since it uses less digits than its factorization.

213505113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094303.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 213505113 is about 14611.8141584130. The cubic root of 213505113 is about 597.6809678083.

The spelling of 213505113 in words is "two hundred thirteen million, five hundred five thousand, one hundred thirteen".