185595149 has 2 divisors, whose sum is σ = 185595150. Its totient is φ = 185595148.

The previous prime is 185595139. The next prime is 185595187. The reversal of 185595149 is 941595581.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177289225 + 8305924 = 13315^2 + 2882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-185595149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185595139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92797574 + 92797575.

It is an arithmetic number, because the mean of its divisors is an integer number (92797575).

Almost surely, 2^185595149 is an apocalyptic number.

It is an amenable number.

185595149 is a deficient number, since it is larger than the sum of its proper divisors (1).

185595149 is an equidigital number, since it uses as much as digits as its factorization.

185595149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324000, while the sum is 47.

The square root of 185595149 is about 13623.3310537475. The cubic root of 185595149 is about 570.4122891762.

The spelling of 185595149 in words is "one hundred eighty-five million, five hundred ninety-five thousand, one hundred forty-nine".