185405112043 has 2 divisors, whose sum is σ = 185405112044. Its totient is φ = 185405112042.

The previous prime is 185405111963. The next prime is 185405112049. The reversal of 185405112043 is 340211504581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 185405112043 - 2³⁷ = 47966158571 is a prime.

It is not a weakly prime, because it can be changed into another prime (185405112049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92702556021 + 92702556022.

It is an arithmetic number, because the mean of its divisors is an integer number (92702556022).

Almost surely, 2^185405112043 is an apocalyptic number.

185405112043 is a deficient number, since it is larger than the sum of its proper divisors (1).

185405112043 is an equidigital number, since it uses as much as digits as its factorization.

185405112043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 185405112043 in words is "one hundred eighty-five billion, four hundred five million, one hundred twelve thousand, forty-three".