213316539 has 4 divisors (see below), whose sum is σ = 284422056. Its totient is φ = 142211024.

The previous prime is 213316501. The next prime is 213316567. The reversal of 213316539 is 935613312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213316539 - 2¹² = 213312443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213316139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35552754 + ... + 35552759.

It is an arithmetic number, because the mean of its divisors is an integer number (71105514).

Almost surely, 2^213316539 is an apocalyptic number.

213316539 is a deficient number, since it is larger than the sum of its proper divisors (71105517).

213316539 is an equidigital number, since it uses as much as digits as its factorization.

213316539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71105516.

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

The square root of 213316539 is about 14605.3599407889. The cubic root of 213316539 is about 597.5049528368.

The spelling of 213316539 in words is "two hundred thirteen million, three hundred sixteen thousand, five hundred thirty-nine".