65198359 has 2 divisors, whose sum is σ = 65198360. Its totient is φ = 65198358.

The previous prime is 65198347. The next prime is 65198369. The reversal of 65198359 is 95389156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65198359 - 2¹¹ = 65196311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65198339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32599179 + 32599180.

It is an arithmetic number, because the mean of its divisors is an integer number (32599180).

Almost surely, 2^65198359 is an apocalyptic number.

65198359 is a deficient number, since it is larger than the sum of its proper divisors (1).

65198359 is an equidigital number, since it uses as much as digits as its factorization.

65198359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 46.

The square root of 65198359 is about 8074.5500803450. The cubic root of 65198359 is about 402.4811590527.

It can be divided in two parts, 6519 and 8359, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 65198359 in words is "sixty-five million, one hundred ninety-eight thousand, three hundred fifty-nine".