185045953 has 2 divisors, whose sum is σ = 185045954. Its totient is φ = 185045952.

The previous prime is 185045947. The next prime is 185045981. The reversal of 185045953 is 359540581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154927809 + 30118144 = 12447^2 + 5488^2 .

It is a cyclic number.

It is not a de Polignac number, because 185045953 - 2¹³ = 185037761 is a prime.

It is not a weakly prime, because it can be changed into another prime (185045923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92522976 + 92522977.

It is an arithmetic number, because the mean of its divisors is an integer number (92522977).

Almost surely, 2^185045953 is an apocalyptic number.

It is an amenable number.

185045953 is a deficient number, since it is larger than the sum of its proper divisors (1).

185045953 is an equidigital number, since it uses as much as digits as its factorization.

185045953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 185045953 is about 13603.1596697238. The cubic root of 185045953 is about 569.8490961972.

The spelling of 185045953 in words is "one hundred eighty-five million, forty-five thousand, nine hundred fifty-three".