299138461 has 4 divisors (see below), whose sum is σ = 299180124. Its totient is φ = 299096800.

The previous prime is 299138453. The next prime is 299138473. The reversal of 299138461 is 164831992.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 279725625 + 19412836 = 16725^2 + 4406^2 .

It is a cyclic number.

It is not a de Polignac number, because 299138461 - 2³ = 299138453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299132461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7000 + ... + 25441.

It is an arithmetic number, because the mean of its divisors is an integer number (74795031).

Almost surely, 2^299138461 is an apocalyptic number.

It is an amenable number.

299138461 is a deficient number, since it is larger than the sum of its proper divisors (41663).

299138461 is an equidigital number, since it uses as much as digits as its factorization.

299138461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41662.

The product of its digits is 93312, while the sum is 43.

The square root of 299138461 is about 17295.6197055786. The cubic root of 299138461 is about 668.7915105569.

The spelling of 299138461 in words is "two hundred ninety-nine million, one hundred thirty-eight thousand, four hundred sixty-one".