196705513 has 2 divisors, whose sum is σ = 196705514. Its totient is φ = 196705512.

The previous prime is 196705493. The next prime is 196705519. The reversal of 196705513 is 315507691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155077209 + 41628304 = 12453^2 + 6452^2 .

It is an emirp because it is prime and its reverse (315507691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196705513 - 2⁹ = 196705001 is a prime.

It is not a weakly prime, because it can be changed into another prime (196705519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98352756 + 98352757.

It is an arithmetic number, because the mean of its divisors is an integer number (98352757).

Almost surely, 2^196705513 is an apocalyptic number.

It is an amenable number.

196705513 is a deficient number, since it is larger than the sum of its proper divisors (1).

196705513 is an equidigital number, since it uses as much as digits as its factorization.

196705513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 196705513 is about 14025.1742591670. The cubic root of 196705513 is about 581.5747071075.

The spelling of 196705513 in words is "one hundred ninety-six million, seven hundred five thousand, five hundred thirteen".