213463853 has 2 divisors, whose sum is σ = 213463854. Its totient is φ = 213463852.

The previous prime is 213463819. The next prime is 213463871. The reversal of 213463853 is 358364312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209294089 + 4169764 = 14467^2 + 2042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213463853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213463813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106731926 + 106731927.

It is an arithmetic number, because the mean of its divisors is an integer number (106731927).

Almost surely, 2^213463853 is an apocalyptic number.

It is an amenable number.

213463853 is a deficient number, since it is larger than the sum of its proper divisors (1).

213463853 is an equidigital number, since it uses as much as digits as its factorization.

213463853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 213463853 is about 14610.4022189671. The cubic root of 213463853 is about 597.6424645845.

The spelling of 213463853 in words is "two hundred thirteen million, four hundred sixty-three thousand, eight hundred fifty-three".