185041945 has 16 divisors (see below), whose sum is σ = 250053120. Its totient is φ = 130233600.

The previous prime is 185041939. The next prime is 185041949. The reversal of 185041945 is 549140581.

It is not a de Polignac number, because 185041945 - 2¹³ = 185033753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (185041949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52560 + ... + 55969.

It is an arithmetic number, because the mean of its divisors is an integer number (15628320).

Almost surely, 2^185041945 is an apocalyptic number.

It is an amenable number.

185041945 is a deficient number, since it is larger than the sum of its proper divisors (65011175).

185041945 is a wasteful number, since it uses less digits than its factorization.

185041945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108576.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 185041945 is about 13603.0123502113. The cubic root of 185041945 is about 569.8449819549.

It can be divided in two parts, 18504 and 1945, that added together give a square (20449 = 143²).

The spelling of 185041945 in words is "one hundred eighty-five million, forty-one thousand, nine hundred forty-five".