1499799845 has 16 divisors (see below), whose sum is σ = 1854351360. Its totient is φ = 1163898624.

The previous prime is 1499799841. The next prime is 1499799859. The reversal of 1499799845 is 5489979941.

It is a cyclic number.

It is not a de Polignac number, because 1499799845 - 2² = 1499799841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1499799841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1685 + ... + 54794.

It is an arithmetic number, because the mean of its divisors is an integer number (115896960).

Almost surely, 2^1499799845 is an apocalyptic number.

It is an amenable number.

1499799845 is a deficient number, since it is larger than the sum of its proper divisors (354551515).

1499799845 is a wasteful number, since it uses less digits than its factorization.

1499799845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56644.

The product of its digits is 29393280, while the sum is 65.

The square root of 1499799845 is about 38727.2493859298. The cubic root of 1499799845 is about 1144.6633246709.

The spelling of 1499799845 in words is "one billion, four hundred ninety-nine million, seven hundred ninety-nine thousand, eight hundred forty-five".