299185149 has 4 divisors (see below), whose sum is σ = 398913536. Its totient is φ = 199456764.

The previous prime is 299185147. The next prime is 299185169. The reversal of 299185149 is 941581992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 299185149 - 2¹ = 299185147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 299185098 and 299185107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299185147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49864189 + ... + 49864194.

It is an arithmetic number, because the mean of its divisors is an integer number (99728384).

Almost surely, 2^299185149 is an apocalyptic number.

It is an amenable number.

299185149 is a deficient number, since it is larger than the sum of its proper divisors (99728387).

299185149 is an equidigital number, since it uses as much as digits as its factorization.

299185149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99728386.

The product of its digits is 233280, while the sum is 48.

The square root of 299185149 is about 17296.9693588212. The cubic root of 299185149 is about 668.8263025990.

The spelling of 299185149 in words is "two hundred ninety-nine million, one hundred eighty-five thousand, one hundred forty-nine".