213442301 has 4 divisors (see below), whose sum is σ = 215000412. Its totient is φ = 211884192.

The previous prime is 213442297. The next prime is 213442319. The reversal of 213442301 is 103244312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 144120025 + 69322276 = 12005^2 + 8326^2 .

It is a cyclic number.

It is not a de Polignac number, because 213442301 - 2² = 213442297 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 (213441301) 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, 778850 + ... + 779123.

It is an arithmetic number, because the mean of its divisors is an integer number (53750103).

Almost surely, 2^213442301 is an apocalyptic number.

It is an amenable number.

213442301 is a deficient number, since it is larger than the sum of its proper divisors (1558111).

213442301 is a wasteful number, since it uses less digits than its factorization.

213442301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558110.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 213442301 is about 14609.6646436528. The cubic root of 213442301 is about 597.6223506031.

Adding to 213442301 its reverse (103244312), we get a palindrome (316686613).

The spelling of 213442301 in words is "two hundred thirteen million, four hundred forty-two thousand, three hundred one".