214590521 has 2 divisors, whose sum is σ = 214590522. Its totient is φ = 214590520.

The previous prime is 214590469. The next prime is 214590527. The reversal of 214590521 is 125095412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120209296 + 94381225 = 10964^2 + 9715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214590521 is a prime.

It is not a weakly prime, because it can be changed into another prime (214590527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107295260 + 107295261.

It is an arithmetic number, because the mean of its divisors is an integer number (107295261).

Almost surely, 2^214590521 is an apocalyptic number.

It is an amenable number.

214590521 is a deficient number, since it is larger than the sum of its proper divisors (1).

214590521 is an equidigital number, since it uses as much as digits as its factorization.

214590521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 214590521 is about 14648.9085258937. The cubic root of 214590521 is about 598.6920778228.

The spelling of 214590521 in words is "two hundred fourteen million, five hundred ninety thousand, five hundred twenty-one".