299808145 has 16 divisors (see below), whose sum is σ = 442794240. Its totient is φ = 189768384.

The previous prime is 299808143. The next prime is 299808167. The reversal of 299808145 is 541808992.

It is not a de Polignac number, because 299808145 - 2¹ = 299808143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 299808095 and 299808104.

It is not an unprimeable number, because it can be changed into a prime (299808143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329005 + ... + 329914.

It is an arithmetic number, because the mean of its divisors is an integer number (27674640).

Almost surely, 2^299808145 is an apocalyptic number.

It is an amenable number.

299808145 is a deficient number, since it is larger than the sum of its proper divisors (142986095).

299808145 is a wasteful number, since it uses less digits than its factorization.

299808145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658944.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 299808145 is about 17314.9688131397. The cubic root of 299808145 is about 669.2902151411.

The spelling of 299808145 in words is "two hundred ninety-nine million, eight hundred eight thousand, one hundred forty-five".