213925853 has 2 divisors, whose sum is σ = 213925854. Its totient is φ = 213925852.

The previous prime is 213925801. The next prime is 213925867. The reversal of 213925853 is 358529312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139310809 + 74615044 = 11803^2 + 8638^2 .

It is a cyclic number.

It is not a de Polignac number, because 213925853 - 2²⁰ = 212877277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213925753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106962926 + 106962927.

It is an arithmetic number, because the mean of its divisors is an integer number (106962927).

Almost surely, 2^213925853 is an apocalyptic number.

It is an amenable number.

213925853 is a deficient number, since it is larger than the sum of its proper divisors (1).

213925853 is an equidigital number, since it uses as much as digits as its factorization.

213925853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 213925853 is about 14626.2043264820. The cubic root of 213925853 is about 598.0733132712.

The spelling of 213925853 in words is "two hundred thirteen million, nine hundred twenty-five thousand, eight hundred fifty-three".