185473149 has 8 divisors (see below), whose sum is σ = 248935872. Its totient is φ = 122829600.

The previous prime is 185473103. The next prime is 185473151. The reversal of 185473149 is 941374581.

It is a happy number.

185473149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 185473149 - 2¹¹ = 185471101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 185473149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185473159) 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, 204264 + ... + 205169.

It is an arithmetic number, because the mean of its divisors is an integer number (31116984).

Almost surely, 2^185473149 is an apocalyptic number.

It is an amenable number.

185473149 is a deficient number, since it is larger than the sum of its proper divisors (63462723).

185473149 is a wasteful number, since it uses less digits than its factorization.

185473149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409587.

The product of its digits is 120960, while the sum is 42.

The square root of 185473149 is about 13618.8527049822. The cubic root of 185473149 is about 570.2872759355.

The spelling of 185473149 in words is "one hundred eighty-five million, four hundred seventy-three thousand, one hundred forty-nine".