185297149 has 8 divisors (see below), whose sum is σ = 188751168. Its totient is φ = 181866720.

The previous prime is 185297117. The next prime is 185297159. The reversal of 185297149 is 941792581.

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

It is a cyclic number.

It is not a de Polignac number, because 185297149 - 2⁵ = 185297117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 185297099 and 185297108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185297159) 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, 10369 + ... + 21865.

It is an arithmetic number, because the mean of its divisors is an integer number (23593896).

Almost surely, 2^185297149 is an apocalyptic number.

It is an amenable number.

185297149 is a deficient number, since it is larger than the sum of its proper divisors (3454019).

185297149 is a wasteful number, since it uses less digits than its factorization.

185297149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11795.

The product of its digits is 181440, while the sum is 46.

The square root of 185297149 is about 13612.3895404150. The cubic root of 185297149 is about 570.1068323405.

The spelling of 185297149 in words is "one hundred eighty-five million, two hundred ninety-seven thousand, one hundred forty-nine".