185454288113 has 8 divisors (see below), whose sum is σ = 186144812616. Its totient is φ = 184763980800.

The previous prime is 185454288101. The next prime is 185454288119. The reversal of 185454288113 is 311882454581.

It can be written as a sum of positive squares in 4 ways, for example, as 121711672384 + 63742615729 = 348872^2 + 252473^2 .

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 185454288113 - 2⁶ = 185454288049 is a prime.

It is a super-2 number, since 2×185454288113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (185454288119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1770245 + ... + 1872077.

It is an arithmetic number, because the mean of its divisors is an integer number (23268101577).

Almost surely, 2^185454288113 is an apocalyptic number.

It is an amenable number.

185454288113 is a deficient number, since it is larger than the sum of its proper divisors (690524503).

185454288113 is a wasteful number, since it uses less digits than its factorization.

185454288113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108595.

The product of its digits is 1228800, while the sum is 50.

The spelling of 185454288113 in words is "one hundred eighty-five billion, four hundred fifty-four million, two hundred eighty-eight thousand, one hundred thirteen".