653195309 has 12 divisors (see below), whose sum is σ = 715843296. Its totient is φ = 595672272.

The previous prime is 653195293. The next prime is 653195329. The reversal of 653195309 is 903591356.

It is not a de Polignac number, because 653195309 - 2⁴ = 653195293 is a prime.

It is a super-2 number, since 2×653195309² = 853328223399210962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653195329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9257 + ... + 37310.

It is an arithmetic number, because the mean of its divisors is an integer number (59653608).

Almost surely, 2^653195309 is an apocalyptic number.

It is an amenable number.

653195309 is a deficient number, since it is larger than the sum of its proper divisors (62647987).

653195309 is a wasteful number, since it uses less digits than its factorization.

653195309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46676 (or 46663 counting only the distinct ones).

The product of its (nonzero) digits is 109350, while the sum is 41.

The square root of 653195309 is about 25557.6859085481. The cubic root of 653195309 is about 867.6562224777.

The spelling of 653195309 in words is "six hundred fifty-three million, one hundred ninety-five thousand, three hundred nine".