184131931481 has 2 divisors, whose sum is σ = 184131931482. Its totient is φ = 184131931480.

The previous prime is 184131931429. The next prime is 184131931507. The reversal of 184131931481 is 184139131481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132684619081 + 51447312400 = 364259^2 + 226820^2 .

It is a cyclic number.

It is not a de Polignac number, because 184131931481 - 2²² = 184127737177 is a prime.

It is a super-2 number, since 2×184131931481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (184131931421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92065965740 + 92065965741.

It is an arithmetic number, because the mean of its divisors is an integer number (92065965741).

Almost surely, 2^184131931481 is an apocalyptic number.

It is an amenable number.

184131931481 is a deficient number, since it is larger than the sum of its proper divisors (1).

184131931481 is an equidigital number, since it uses as much as digits as its factorization.

184131931481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 44.

The spelling of 184131931481 in words is "one hundred eighty-four billion, one hundred thirty-one million, nine hundred thirty-one thousand, four hundred eighty-one".