213896513 has 2 divisors, whose sum is σ = 213896514. Its totient is φ = 213896512.

The previous prime is 213896479. The next prime is 213896597. The reversal of 213896513 is 315698312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188018944 + 25877569 = 13712^2 + 5087^2 .

It is a cyclic number.

It is not a de Polignac number, because 213896513 - 2¹⁰ = 213895489 is a prime.

It is not a weakly prime, because it can be changed into another prime (213896413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106948256 + 106948257.

It is an arithmetic number, because the mean of its divisors is an integer number (106948257).

Almost surely, 2^213896513 is an apocalyptic number.

It is an amenable number.

213896513 is a deficient number, since it is larger than the sum of its proper divisors (1).

213896513 is an equidigital number, since it uses as much as digits as its factorization.

213896513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 38.

The square root of 213896513 is about 14625.2012977600. The cubic root of 213896513 is about 598.0459700383.

The spelling of 213896513 in words is "two hundred thirteen million, eight hundred ninety-six thousand, five hundred thirteen".