653422191 has 8 divisors (see below), whose sum is σ = 879222960. Its totient is φ = 431618112.

The previous prime is 653422163. The next prime is 653422201. The reversal of 653422191 is 191224356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 653422191 - 2²¹ = 651325039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653420191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998790 + ... + 999443.

It is an arithmetic number, because the mean of its divisors is an integer number (109902870).

Almost surely, 2^653422191 is an apocalyptic number.

653422191 is a deficient number, since it is larger than the sum of its proper divisors (225800769).

653422191 is a wasteful number, since it uses less digits than its factorization.

653422191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998345.

The product of its digits is 12960, while the sum is 33.

The square root of 653422191 is about 25562.1241488261. The cubic root of 653422191 is about 867.7566685917.

The spelling of 653422191 in words is "six hundred fifty-three million, four hundred twenty-two thousand, one hundred ninety-one".