213521083 has 2 divisors, whose sum is σ = 213521084. Its totient is φ = 213521082.

The previous prime is 213521041. The next prime is 213521123. The reversal of 213521083 is 380125312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213521083 - 2¹³ = 213512891 is a prime.

It is not a weakly prime, because it can be changed into another prime (213581083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106760541 + 106760542.

It is an arithmetic number, because the mean of its divisors is an integer number (106760542).

Almost surely, 2^213521083 is an apocalyptic number.

213521083 is a deficient number, since it is larger than the sum of its proper divisors (1).

213521083 is an equidigital number, since it uses as much as digits as its factorization.

213521083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 213521083 is about 14612.3606238007. The cubic root of 213521083 is about 597.6958694453.

Adding to 213521083 its reverse (380125312), we get a palindrome (593646395).

The spelling of 213521083 in words is "two hundred thirteen million, five hundred twenty-one thousand, eighty-three".