213842653 has 2 divisors, whose sum is σ = 213842654. Its totient is φ = 213842652.

The previous prime is 213842641. The next prime is 213842689. The reversal of 213842653 is 356248312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179479609 + 34363044 = 13397^2 + 5862^2 .

It is a cyclic number.

It is not a de Polignac number, because 213842653 - 2¹³ = 213834461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213842633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106921326 + 106921327.

It is an arithmetic number, because the mean of its divisors is an integer number (106921327).

Almost surely, 2^213842653 is an apocalyptic number.

It is an amenable number.

213842653 is a deficient number, since it is larger than the sum of its proper divisors (1).

213842653 is an equidigital number, since it uses as much as digits as its factorization.

213842653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 34.

The square root of 213842653 is about 14623.3598396538. The cubic root of 213842653 is about 597.9957690331.

The spelling of 213842653 in words is "two hundred thirteen million, eight hundred forty-two thousand, six hundred fifty-three".