189295531261 has 8 divisors (see below), whose sum is σ = 189875913120. Its totient is φ = 188715350448.

The previous prime is 189295531231. The next prime is 189295531283. The reversal of 189295531261 is 162135592981.

189295531261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 189295531261 - 2⁷ = 189295531133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189295531199 and 189295531208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189295531231) 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, 1958115 + ... + 2052511.

It is an arithmetic number, because the mean of its divisors is an integer number (23734489140).

Almost surely, 2^189295531261 is an apocalyptic number.

It is an amenable number.

189295531261 is a deficient number, since it is larger than the sum of its proper divisors (580381859).

189295531261 is an equidigital number, since it uses as much as digits as its factorization.

189295531261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100523.

The product of its digits is 1166400, while the sum is 52.

The spelling of 189295531261 in words is "one hundred eighty-nine billion, two hundred ninety-five million, five hundred thirty-one thousand, two hundred sixty-one".