213513983 has 2 divisors, whose sum is σ = 213513984. Its totient is φ = 213513982.

The previous prime is 213513973. The next prime is 213514003. The reversal of 213513983 is 389315312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213513983 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213513913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106756991 + 106756992.

It is an arithmetic number, because the mean of its divisors is an integer number (106756992).

Almost surely, 2^213513983 is an apocalyptic number.

213513983 is a deficient number, since it is larger than the sum of its proper divisors (1).

213513983 is an equidigital number, since it uses as much as digits as its factorization.

213513983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 213513983 is about 14612.1176767777. The cubic root of 213513983 is about 597.6892445137.

The spelling of 213513983 in words is "two hundred thirteen million, five hundred thirteen thousand, nine hundred eighty-three".