1499449867 has 4 divisors (see below), whose sum is σ = 1499805216. Its totient is φ = 1499094520.

The previous prime is 1499449849. The next prime is 1499449907. The reversal of 1499449867 is 7689449941.

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

It is a cyclic number.

It is not a de Polignac number, because 1499449867 - 2²³ = 1491061259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1499449667) 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, 171268 + ... + 179809.

It is an arithmetic number, because the mean of its divisors is an integer number (374951304).

Almost surely, 2^1499449867 is an apocalyptic number.

1499449867 is a deficient number, since it is larger than the sum of its proper divisors (355349).

1499449867 is an equidigital number, since it uses as much as digits as its factorization.

1499449867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355348.

The product of its digits is 15676416, while the sum is 61.

The square root of 1499449867 is about 38722.7306242729. The cubic root of 1499449867 is about 1144.5742820903.

The spelling of 1499449867 in words is "one billion, four hundred ninety-nine million, four hundred forty-nine thousand, eight hundred sixty-seven".