299991455 has 4 divisors (see below), whose sum is σ = 359989752. Its totient is φ = 239993160.

The previous prime is 299991413. The next prime is 299991463. The reversal of 299991455 is 554199992.

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

It is not a de Polignac number, because 299991455 - 2⁸ = 299991199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 299991397 and 299991406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29999141 + ... + 29999150.

It is an arithmetic number, because the mean of its divisors is an integer number (89997438).

Almost surely, 2^299991455 is an apocalyptic number.

299991455 is a deficient number, since it is larger than the sum of its proper divisors (59998297).

299991455 is an equidigital number, since it uses as much as digits as its factorization.

299991455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59998296.

The product of its digits is 1312200, while the sum is 53.

The square root of 299991455 is about 17320.2614010297. The cubic root of 299991455 is about 669.4265941279.

The spelling of 299991455 in words is "two hundred ninety-nine million, nine hundred ninety-one thousand, four hundred fifty-five".