213120575 has 6 divisors (see below), whose sum is σ = 264269544. Its totient is φ = 170496440.

The previous prime is 213120571. The next prime is 213120577. The reversal of 213120575 is 575021312.

It is not a de Polignac number, because 213120575 - 2² = 213120571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213120571) 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 5 ways as a sum of consecutive naturals, for example, 4262387 + ... + 4262436.

It is an arithmetic number, because the mean of its divisors is an integer number (44044924).

Almost surely, 2^213120575 is an apocalyptic number.

213120575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

213120575 is a deficient number, since it is larger than the sum of its proper divisors (51148969).

213120575 is an equidigital number, since it uses as much as digits as its factorization.

213120575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8524833 (or 8524828 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 213120575 is about 14598.6497663311. The cubic root of 213120575 is about 597.3219300946.

Adding to 213120575 its reverse (575021312), we get a palindrome (788141887).

The spelling of 213120575 in words is "two hundred thirteen million, one hundred twenty thousand, five hundred seventy-five".