209135795 has 12 divisors (see below), whose sum is σ = 275852640. Its totient is φ = 152098320.

The previous prime is 209135777. The next prime is 209135813. The reversal of 209135795 is 597531902.

It is an interprime number because it is at equal distance from previous prime (209135777) and next prime (209135813).

It is not a de Polignac number, because 209135795 - 2¹⁴ = 209119411 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172235 + ... + 173444.

It is an arithmetic number, because the mean of its divisors is an integer number (22987720).

Almost surely, 2^209135795 is an apocalyptic number.

209135795 is a deficient number, since it is larger than the sum of its proper divisors (66716845).

209135795 is a wasteful number, since it uses less digits than its factorization.

209135795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345706 (or 345695 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 209135795 is about 14461.5281004464. The cubic root of 209135795 is about 593.5757143865.

The spelling of 209135795 in words is "two hundred nine million, one hundred thirty-five thousand, seven hundred ninety-five".