213936513 has 16 divisors (see below), whose sum is σ = 326518656. Its totient is φ = 122054400.

The previous prime is 213936511. The next prime is 213936533. The reversal of 213936513 is 315639312.

It is not a de Polignac number, because 213936513 - 2¹ = 213936511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213936511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5913 + ... + 21513.

It is an arithmetic number, because the mean of its divisors is an integer number (20407416).

Almost surely, 2^213936513 is an apocalyptic number.

It is an amenable number.

213936513 is a deficient number, since it is larger than the sum of its proper divisors (112582143).

213936513 is a wasteful number, since it uses less digits than its factorization.

213936513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16264.

The product of its digits is 14580, while the sum is 33.

The square root of 213936513 is about 14626.5687363783. The cubic root of 213936513 is about 598.0832471736.

The spelling of 213936513 in words is "two hundred thirteen million, nine hundred thirty-six thousand, five hundred thirteen".